https://bigthink.com/videos/3-great-untruths-to-stop-telling-kids-and-ourselves

there’s some systems that get stronger if they get pushed around, knocked around.
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It turns out kids are anti-fragile and when we protect children from unpleasantness, from conflicts, from insults, from teasing, from exclusion, we’re preventing their social psychology, we’re preventing their social abilities, we’re preventing their strength from developing.
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There are some systems that have to get pushed around, and Taleb wrote this book ‘Antifragile’ or antifragility because things like the banking system had to be tested or it gets fragile and collapses. Bones have to be tested, used, or they get weak; if you were to fly to Mars your bones would get weak. The immune system, if you protect kids from bacteria, if you keep them in a sterile environment you’re damaging their immune system. The immune system has to face challenges in order to learn.