> Grade schools seem all right in the US.

My experience (and impression of others) is that sure, it's incredibly good by certain very basic metrics but that doesn't mean all participants find it desirable or even tolerable. I slogged through it for no reason other than that's just what was expected and I didn't see any realistic alternative but in retrospect I think I would have been better off dropping out and attending a community college (of course I could be wildly wrong about that).