The only usefulness I see in traditional K-12 schooling is to develop social skills with people in the same age range as you.

In fact that’s the only real thing I even enjoyed about schooling was the friendships and good times socially I had with some people.

The homework, long boring lectures, lunches, and just regurgitating BS just to get tested on it and eventually forget 99% of it is what I do not miss at all.