Why Siblings Fight & Why it Matters | CP256

Sibling conflict can be one of the hardest parts of parenting, especially when the fighting feels intense, personal, or mean. These moments can leave parents feeling overwhelmed, protective, and wondering if they’re doing something wrong.

In this episode, Jennifer explores why sibling conflict feels so activating for parents and explains that what looks like bad behavior is often developing brains, big emotions, unmet needs, and dysregulated nervous systems colliding. Siblings naturally compete for attention, fairness, autonomy, and connection, and when stress levels rise, so can conflict.

Listen in to hear Jennifer break down what children are actually learning through sibling conflict and why these difficult moments can become opportunities for building emotional regulation, communication, and resilience.

She shares practical strategies for staying regulated yourself, avoiding referee mode, creating safety during big moments, and helping children repair afterward. Because sibling conflict isn’t usually a sign something is wrong in your family, it’s often where some of the most important learning happens.

Jennifer's Takeaways:

• Why Sibling Conflict Feels So Hard (0:00)
• What Sibling Conflict Is Really Teaching Kids (02:30)
• The Brain Science Behind Sibling Fights (05:00)
• Understanding Sibling Roles and Family Dynamics (07:00)
• How Parents Can Respond During Big Moments (10:00)
• Teaching Repair, Connection, and Lifelong Skills (12:30)
• Final Thoughts: Conflict Is Practice, Not Failure (14:00)

Meet Jennifer Kolari



Jennifer Kolari is the host of the “Connected Parenting” weekly podcast and the co-host of “The Mental Health Comedy” podcast. Kolari is a frequent guest on Nationwide morning shows and podcasts in th US and Canada. Her advice can also be found in many Canadian and US magazines such as; Today’s Parent, Parents Magazine and Canadian Family.

Kolari’s powerful parenting model is based on the neurobiology of love, teaching parents how to use compassion and empathy as powerful medicine to transform challenging behavior and build children’s emotional resilience and emotional shock absorbers.

Jennifer’s wisdom, quick wit and down to earth style help parents navigate modern-day parenting problems, offering real-life examples as well as practical and effective tools and strategies.

Her highly entertaining, inspiring workshops are shared with warmth and humour, making her a crowd-pleasing speaker with schools, medical professionals, corporations and agencies throughout North America, Europe and Asia.

One of the nation’s leading parenting experts, Jennifer Kolari, is a highly sought- after international speaker and the founder of Connected Parenting. A child and family therapist with a busy practice based in San Diego and Toronto, Kolari is also the author of Connected Parenting: How to Raise A Great Kid (Penguin Group USA and Penguin Canada, 2009) and You’re Ruining My Life! (But Not Really): Surviving the Teenage Years with Connected Parenting (Penguin Canada, 2011).