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Every child is different: parenting siblings who need different things

What works for one child may not work for the next, and that says nothing bad about you or them.

⏱ 4 min read📑 10 sections📚 21 sources✅ Reviewed October 2026

By the numbers

What research shows about temperament, fairness and fit.

Temperament

9traits pediatricians use to describe temperament, from activity level and adaptability to mood, intensity and sensitivity to noise, light or touch.
~40%of children fit the loose “easy” temperament pattern. Many others are slow to warm up or more challenging, and no label gives the full picture of a child.
105samples from 84 long-term studies: children with a more intense or “difficult” temperament were hit harder by harsh parenting, but also gained more from warm, positive parenting.

Fairness

26,451children and teens across 88 sources: being treated less favorably than a sibling was linked with more emotional and behavior difficulties.
19,469people in a review of who tends to get favored: parents reported favoring daughters, and more agreeable and conscientious children got more favored treatment.

Why kids in the same family are so different

Same home, same rules, very different children.

Many parents and caregivers are surprised when the approach that worked beautifully with one child falls flat with the next. That is not a sign you are doing it wrong. Children arrive with their own way of meeting the world.

The American Academy of Pediatrics (AAP) describes temperament as a quality children are born with. Experiences, relationships, surroundings and health can shape it some, but the core stays.

Decades of sibling research show that children raised in the same home often turn out very differently. One reason is that each child experiences and reacts to the “same” family in their own way, and each has different friends and experiences outside it.

🧬 Born differentSome babies are calm and regular from day one. Others are intense, alert or easily startled.
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The AAP says hints of temperament show up early. Some children approach new things boldly, others hang back. Some adjust to change quickly, others need time.

A child’s temperament is nobody’s fault. It is simply part of who they are.
🪜 Different place in the familyAn oldest, a middle and a youngest child grow up in slightly different families.
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Each child joins the family at a different time: different ages of siblings, different stresses, sometimes a different home or a different set of adults. Even the same parent or caregiver is a bit different with a third child than with a first.

Researchers note that brothers and sisters can react differently to what looks like the same experience, and that friends and life outside the home matter too.

🔄 Different reactions to the same parentingSome children are more affected by how they are parented, for better and for worse.
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A large review of long-term studies found that children with a more intense or “difficult” temperament were more affected by harsh parenting, but they also benefited more from warm, positive parenting.

So the child who seems hardest to parent may also be the one who blossoms most with patience, warmth and a good fit.

Every child is different. What works for one sibling may not work for another, and what works for one parent or caregiver may not work for the other. That is normal.

Getting to know your child’s temperament

Nine traits that help explain how each child reacts.

The AAP describes nine temperament traits. Knowing where each child sits can help you understand them, appreciate what makes them unique, and avoid misunderstandings when their style is different from yours.

🏃 Activity levelHow much a child moves, fidgets and needs to be on the go.
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For a very active child, the AAP suggests keeping spaces safe, offering plenty of time to move and burn off energy, and using distraction. For a slower-paced child, allow extra time, set realistic deadlines and avoid criticizing their pace.

🔀 AdaptabilityHow easily a child adjusts when plans or routines change.
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For slow-to-adapt children, the AAP suggests keeping daily routines predictable, preparing them ahead of changes, and offering several short tries at new things.

What to say

  • “In ten minutes we’ll leave the park. I’ll tell you again at five.”
  • “Tomorrow is different: Grandma is picking you up. Let’s look at the plan together.”
🚪 Approach or withdrawalDoes your child dive into new people and places, or watch first?
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For a child who hangs back, the AAP suggests introducing new things gradually, talking about them beforehand, and letting the child go at their own pace.

Try saying

  • “You can watch for a while first. Join when you’re ready.”

Try not to say

  • “Stop being shy.”
  • “Your sister isn’t scared, why are you?”
🎯 Attention and distractibilityHow long a child stays with a task, and how easily things pull them away.
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The AAP suggests short, simple instructions, using the child’s name and eye contact, redirecting without anger or shame, and offering breaks and praise.

If attention worries you a lot, the “ADHD in children & teens” guide explains what to look for and when to ask a professional.
🌋 IntensityHow much energy a child puts into reactions, happy or upset.
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Intense children laugh loudly and cry loudly. The AAP suggests patience and modeling calmer ways to respond.

The “Staying calm when your child isn’t: don’t match their energy” guide has ideas for keeping your own voice and body steady.
🌤️ MoodWhether a child’s words and actions tend to lean cheerful or serious.
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Some children naturally see problems first. The AAP suggests easing demands that make a low mood worse and noticing and encouraging positive moments.

⏰ RegularityHow predictable a child’s hunger, sleep and toilet patterns are.
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For children with irregular rhythms, the AAP suggests keeping steady mealtimes and bedtimes without forcing eating or sleep.

👂 Sensory thresholdHow much noise, light, texture or touch it takes to bother a child.
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Some children react to the slightest scratchy label or noisy room. The AAP suggests reducing stimulation, planning ahead for busy places and respecting their preferences when you can.

The “Introverts & highly sensitive people” guide may help if your child is deeply sensitive.
Labels like “easy”, “shy” or “challenging” are handy shorthand, but the AAP notes none of them gives a complete picture of a child.

Fit, not fixing: matching your approach to your child

You can’t change their temperament, but you can change the fit.

Canada’s public health agency puts it simply: your child cannot change their temperament, and neither can you. What you can change is how you respond, and that makes a big difference.

Researchers call this “goodness of fit”: how well a child’s surroundings and the adults’ expectations suit the child’s temperament. A cautious child does better with time to warm up. A high-energy child does better with room to move.

🏠 Change the settingSmall changes to the day can prevent a lot of battles.
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  • A quiet corner for a child who gets overwhelmed
  • Extra warnings before transitions for a slow-to-adapt child
  • Movement breaks during homework for an active child
  • Shorter outings for a child who tires of crowds
🎚️ Change your expectationsExpect progress that suits this child, not their sibling.
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If one child happily tries new foods and another needs ten tries, both are normal. The AAP suggests realistic deadlines and avoiding criticism of a child’s natural pace.

🛠️ Change your approachSame goal, different route.
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The public health agency advises parents and caregivers to be open-minded, flexible and responsive to each child’s needs.

For one child, a gentle reminder is enough. Another may need a picture chart, a timer or you standing nearby. Neither child is “better”.

Whatever your temperaments, your child needs an adult who understands them and helps them feel safe, secure and loved.

Same family values, different tools

Keep the rules the same; change how you help each child meet them.

Treating children as individuals doesn’t mean having no shared rules. Family values like kindness, safety and honesty can stay the same for everyone. What changes is the support each child needs to live them.

🧸 Toddlers and preschoolersLots of showing, short words and predictable routines.
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A bold toddler may need firm limits and lots of supervision. A cautious one may need you to model new things first and wait. Both still need warmth and clear, simple words.

Try

  • Give each child a bit of time where they lead the play
  • Notice each child doing well, out loud
  • Offer two choices to a strong-willed child
🎒 School-age kidsNotice their strengths and let them help solve problems.
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School-age children notice fairness keenly. Explain why each child gets the support they get. Ask each one what helps them: “What makes mornings easier for you?”

Try

  • A checklist for one child, a quick chat for another
  • Homework at the table for one, a quiet room for another
  • Different chores that suit each child’s strengths
🎧 TeensMore say in the plan, and respect for who they are becoming.
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One teen may want to talk everything through, another may open up only in the car. NIMH notes the teen brain is still maturing into the mid-to-late 20s and is highly tuned to friends and social life.

Try

  • Agree on limits together where you can
  • Respect different needs for privacy and space
  • Find the time and place each teen talks best

What to say

  • “Everyone in our family is kind with their hands. You each get different help with that.”
  • “Your brother needs a timer to get ready. You like a checklist. Both are fine.”
  • “You are not your sister. I want to know what works for you.”

Fair isn’t always equal

Each child gets what they need, not exactly the same thing.

Nemours KidsHealth advises parents and caregivers not to get pulled into making everything exactly “fair” and “equal”, because sometimes one child needs more than another. What children need most is to know they are safe, important and loved, and that their needs will be met.

The AAP says each child’s temperament, maturity and age shape how they handle disagreements. It suggests one-on-one time with each child, like a bedtime chat or a breakfast out, so they know they have your full attention.

💬 Explaining it to kidsSimple words help children understand.
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Try saying

  • “When you need help, you get help too.”
  • “Fair means everyone gets what they need. Sometimes that looks different.”
  • “Your turn for special time is Saturday. What would you like to do?”

Try not to say

  • “Stop counting, life isn’t fair.”
  • “You’re being selfish.”
👀 Watch the gapBig, lasting differences in warmth or harshness can hurt.
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A large review found that children who felt less favored than a sibling, and families with big differences in how siblings were treated, had more emotional and behavior difficulties. Some links were stronger when siblings were close in age.

Different support is fine. Different love, warmth or harshness is what to watch for.

For more on fairness and new babies, see the “Sibling jealousy in kids” guide.

Comparisons, labels and favorites

“Why can’t you be more like…” rarely helps anyone.

It is natural to compare. You notice that one child read early or slept through the night sooner. The trouble starts when the comparison is said out loud or becomes a family label.

📛 Family labels“The easy one”, “the smart one”, “the wild one”.
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Labels can stick and shape how a child sees themselves. The AAP notes that temperament labels are shorthand and never the full picture of a child.

Swap

  • “She’s the difficult one” → “She feels things strongly”
  • “He’s lazy” → “He takes his time”
  • “She’s shy” → “She likes to watch first”
⭐ Who tends to get favoredFavoring often happens without anyone meaning it.
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A review of nearly 20,000 people found parents reported favoring daughters, and children who were more agreeable and conscientious tended to get more favored treatment, partly because they clashed less with their parents.

Knowing this can help you notice when the child who is harder to parent is getting less warmth, so you can gently balance things.

🎉 Praise each child on their own termsNotice effort and growth, not who did it best.
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Try

  • “You kept trying even when it was hard.”
  • “You were so patient with the puzzle.”

Try not to say

  • “You’re better at this than your brother.”
  • “Why can’t you be more like your sister?”

When one child needs more of you

Health needs, disability or a hard season, without losing the others.

Sometimes one child needs a lot more time: a disability, a health condition, a mental health struggle, or a rough patch at school. The AAP notes that siblings may feel invisible unless they demand attention, and suggests aiming for balance across all your children.

💭 What siblings may feelGuilt, jealousy, worry or embarrassment, sometimes all at once.
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The AAP lists feelings like guilt about not being the one who is unwell, jealousy, resentment of extra chores, embarrassment, and worry that they caused the problem or could get it too.

Try saying

  • “It’s okay to feel jealous sometimes. I still want time with just you.”
  • “Nothing you did caused this.”
🕯️ Keep small ritualsTen minutes that are just theirs.
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The AAP suggests spending individual time with each child, giving siblings honest information they can understand, and watching that they don’t take on unfair responsibilities.

🚩 Watch for signs a sibling is strugglingWithdrawing, anger, falling grades or losing interest in friends.
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The AAP says to talk with your child’s pediatrician if you notice these changes.

The “Parenting an autistic child”, “ADHD in children & teens” and “Gifted & twice-exceptional kids” guides go deeper on specific needs.

When what works for you doesn’t work for the other parent or caregiver

Children connect differently with different adults, and adults differ too.

Your child may cooperate easily with one adult and push back hard with another. Adults have temperaments too: quiet or loud, cautious or action-oriented. Canada’s public health agency suggests understanding how all your temperaments fit together and helping each other.

Triple P, a well-studied parenting program, notes that it is common for parents and carers to disagree. Children do better when the adults work as a team, because responses are more consistent and home feels calmer.

🎨 Different styles can both be okayOne adult jokes a child out of a mood; another sits quietly with them.
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There is rarely one right way. If both approaches are kind and safe, a child can benefit from having more than one style around them.

Try saying (to each other)

  • “That worked for you at bedtime. Can you show me?”
  • “He listens to you when you’re playful. I’m more matter-of-fact. Let’s use both.”
📋 Agree on the big thingsShared values and safety rules, even if the style differs.
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Triple P suggests agreeing on a plan together, backing each other up, and waiting until the moment has passed to talk calmly about any disagreement.

🏡 Across two homes or several carersGrandparents, co-parents, step-parents and foster or kinship carers.
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When a child moves between homes or carers, each adult may see a different side of them. Sharing what works (“she needs a warning before screens go off”) helps the child feel understood everywhere.

The “Parenting as a team: getting on the same page” guide has more on working through disagreements.

When and where to get help

Doctors, parent coaching and confidential helplines.

Raising children who need very different things is hard work. Asking for help is a sign of strength. Your child’s pediatrician or family doctor is a good first step if one child’s behavior, mood or development worries you.

🩺 Talk to a doctor or counselor ifSomething feels bigger than temperament.
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  • A child seems unhappy, withdrawn or angry most of the time
  • Behavior is much harder than other children the same age, or lasts a long time
  • A sibling seems to be struggling with the attention another child needs
  • You feel stuck, exhausted or worried most days

The CDC says parent training programs have strong evidence for helping with young children’s behavior.

☎️ National Parent & Youth HelplineFree emotional support for parents, caregivers and young people.
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Call or text 1-855-427-2736, or chat online, any time. It is free and staffed by trained people, and is supported by the U.S. Administration for Children and Families.

🆘 In a crisisFree, confidential support 24/7.
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If you or your child is in emotional distress or thinking about suicide, call or text 988, or chat at 988lifeline.org (988 Suicide & Crisis Lifeline). You can also text HOME to 741741 (Crisis Text Line). If someone is in immediate danger, call 911.

🌍 Outside the U.S.Find free helplines in your country.
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Find A Helpline (findahelpline.com) lists free, confidential helplines around the world.

📝 Worksheets for this guide

Fill these in privately in the app. Your answers stay on your phone.

My child’s temperament snapshotFill one in for each child. It helps you see their style, not just their behavior.
What works for each childA quick record of the tools that help each child, so every caregiver can use them.
Fair, not equal: my check-inA gentle look at how attention and warmth are shared at the moment.
Our caregiver team notesFor parents, grandparents, co-parents or anyone who shares the caring.
🔒 Fill in privately in the Mentally United Wellness App. Free, no ads, no accounts.

Sources

  1. American Academy of Pediatrics (HealthyChildren.org). How to Understand Your Child’s Temperament
  2. Public Health Agency of Canada. Behaviour: Understanding Your Child’s Temperament (Nobody’s Perfect)
  3. Peer-reviewed research (via PubMed Central, NIH) (2011). Why are children in the same family so different from one another? (Plomin & Daniels, International Journal of Epidemiology 40(3): 563–582)
  4. Peer-reviewed research (via PubMed) (2001). Why are children in the same family so different? Nonshared environment a decade later (Plomin, Asbury & Dunn, Canadian Journal of Psychiatry 46(3): 225–233)
  5. Peer-reviewed research (via PubMed) (2016). Differences in sensitivity to parenting depending on child temperament: A meta-analysis (Slagt, Dubas, Deković & van Aken, Psychological Bulletin 142(10): 1068–1110)
  6. Peer-reviewed research (via PubMed) (2024). Parental differential treatment of siblings linked with internalizing and externalizing behavior: A meta-analysis (Jensen & Thomsen, Child Development 95(4): 1384–1405)
  7. Peer-reviewed research (via PubMed) (2025). Parents favor daughters: A meta-analysis of gender and other predictors of parental differential treatment (Jensen & Jorgensen-Wells, Psychological Bulletin 151(1): 33–47)
  8. Nemours KidsHealth. Sibling Rivalry
  9. American Academy of Pediatrics (HealthyChildren.org). Sibling Relationships: How to Help Your Kids Build Healthy Bonds
  10. American Academy of Pediatrics (HealthyChildren.org). Siblings of Children with Chronic Illnesses or Disabilities
  11. National Institute of Mental Health (NIMH). The Teen Brain: 7 Things to Know
  12. Triple P – Positive Parenting Program. Different parenting styles? Create a team approach
  13. Centers for Disease Control and Prevention (CDC). About Behavior or Conduct Problems in Children
  14. National Parent & Youth Helpline (supported by the U.S. Administration for Children and Families). National Parent & Youth Helpline
  15. State of Minnesota resource directory (mn.gov). Parents Anonymous – National Parent & Youth Helpline (resource listing)
  16. 988 Suicide & Crisis Lifeline. 988 Suicide & Crisis Lifeline
  17. Substance Abuse and Mental Health Services Administration (SAMHSA). 988 Suicide & Crisis Lifeline
  18. Crisis Text Line. Crisis Text Line: Text HOME to 741741
  19. Substance Abuse and Mental Health Services Administration (SAMHSA). Crisis Text Line (Disaster Behavioral Health Information Series)
  20. ThroughLine. Find A Helpline
  21. International Association for Suicide Prevention (IASP). Crisis Centres and Helplines

This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.

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