Sibling Rivalry in Tweens: How to Handle Conflict Without Taking Sides

Why It Matters

Guiding parents through this developmental crossroads reduces sibling tension and supports adolescents' social competence, leading to stronger family dynamics and long‑term wellbeing.

Key Takeaways

• Middle schoolers oscillate between kindness and meanness toward siblings.
• Parents should shift from authority to supportive “home base” coaching.
• Validate children’s feelings without confirming favoritism or unfairness.
• Use conflict moments to teach relational values and emotional regulation.
• Model self‑compassion; parents need kindness toward themselves during turbulence.

Summary

Sibling rivalry in tweens is a normal yet turbulent phase, and parents often wonder whether to intervene or let the conflict play out. Dr. Cheryl and therapist Bridget Kerris explain that the older child’s push‑away behavior reflects a developmental need to test social acceptance, while the younger sibling struggles to make sense of the sudden distance.

Key insights include the shift from a purely directive parenting style to a “home base” coaching role, where parents provide guidance while allowing teens to explore relationships. Validating each child’s feelings—acknowledging “I feel hurt” without confirming favoritism—helps defuse rivalry. The conversation also highlights that emotions are not facts; children can express dislike without it being permanent.

Bridget notes, “Kids at this age ask, ‘Am I likable?’” and urges parents to thank children for bringing up tough topics. She frames sibling dynamics as a lifelong group project, encouraging honest discussions about values, fairness, and the acceptability of temporary negative feelings toward a brother or sister.

The implications are clear: by modeling self‑compassion and using conflict as teaching moments, parents can nurture emotional regulation, strengthen sibling bonds, and reduce the anxiety that often accompanies middle‑school years, setting the stage for healthier family relationships into adulthood.

Original Description

Sibling Drama Isn’t A Problem - It’s Practice

When your kids are fighting - one minute playing, the next snapping or shutting down - it’s easy to wonder: What am I doing wrong? Should I step in… or stay out of it?

In this episode, Dr. Sheryl sits down with therapist and mom of seven Bridget KerMorris to unpack what’s really happening between siblings - especially when one child is entering the tween years and everything starts to shift.

Together, they explore:

- Why your older child may suddenly seem mean, distant, or unpredictable

- What younger siblings are actually experiencing (and often not saying)

- The difference between a pattern and a moment

- How to respond without taking sides or shutting things down

- What “repair” looks like, and why it matters more than getting it right

You’ll also hear simple, real-life language you can use in the moment -especially when your child says things like “It’s not fair” or “You love them more.”

Sibling conflict isn’t a sign that something is wrong - it’s where your kids are learning how relationships actually work.

Thank you to our partners for making this episode possible:

- Equip: https://equip.health/goodinside: Learn about Equip's at-home eating disorder treatment at equip.health/goodinside https://equip.health/goodinside