I think the major aspect is to function in society. Maybe there would be less Karens or whatever. Playing on the street with your friends is one thing, but in a room full of other people is a bit different. The one thing about teachers part that you mentioned, as I was an educator for a bit, you don't put your hands on someone's kid. High risk, no reward. You can only use your voice really, and I mean yelling. The restraint techniques require two educators, mostly for legal reasons, and well it's funny that they're military style ones; of course there's emergency ones and it's too risky.