There are many adults who don't know those things.
"Unschooled Teens: How are they as people?"
SandraDodd.com/teen/people
photo by Sandra Dodd, of three teens on the way to a party together, long ago
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It turns out that much of what is considered "normal teen behavior" is a normal reaction to many years of school, and to being controlled and treated as children and school kids and students rather than as full, thoughtful human beings.
Being wrong doesn't bother me one bit when the truth is so much better than my fears and predictions!