Parenting wisdom for product managers, powered by Lenny's Podcast

Every Kid Is Their Own Cohort

Inspired by Lauren Ipsen episode

Lauren Ipsen on finding the right fit, not the best person. Your toddler isn't "toddlers"—they're this specific toddler.

Every parenting book is statistical gaslighting. "By 18 months, kids have 50 words." My kid has 12 words and one is "POOP" screamed at a funeral. Am I worried? Honestly, no. The book's panicking at its own averages.

That's the trap. You're forensically analyzing your kid like a failed product launch. "Why doesn't he sleep 12 hours?" Nothing's broken. Your kid runs on 9 hours. His sample size is one. Stop comparing him to the national database.

Every parent becomes a spreadsheet person. "Hmm, the data suggests..." No. Data suggests nothing about YOUR kid. Other kids are irrelevant. That well-rested Instagram baby could be a prop managed by ring lights.

Study YOUR kid. What are THEIR patterns? Does cereal at night tank them or fuel them? Does structure break them or save them? You're not running a general population study—you're running an N-of-1 experiment on someone you actually love.

Every kid is their own cohort. Treat them like it. Ignore the averages and just watch your weird, perfect, completely unique human.

1-2yr2-3yr3-4yr4-6yrMeasuring SuccessUnderstanding Your ChildLauren Ipsen
While this advice is inspired by Lauren Ipsen's quotes, it does not necessarily mean they would agree with it. Much like your kids or mother-in-law. If you see something odd though, you can .