[selftest]

I don’t know that that’s true for most people; often the topics being taught aren’t as important as the skills you’re being taught/exposed to. Many people, especially Americans, never attend college. High school is the only chance before adulthood to socialize with your peers and learn what it means to interact with people of various upbringings. Anecdotally, my sibling graduated with a class of nine from a private Christian school and they are very far behind from a social and educational standpoint when compared to me, who graduated from a normal public high school with a few hundred of my peers. She also never read any of the books I was made to read in high school... I could not fathom the blank spot that has created for my sibling. Maybe I was fortunate to go to school before Common Core, or lucky I had more good teachers than bad but 20 years out from HS I might not remember everything I learned there, but the stuff I do remember helped mold how I think about things.