19 US states permit schools to hit students as punishment. The rest permit physical "restraining" of children, which often causes psychological or physical injury.

When I was a child, the act of trying to "restrain" me always backfired since it was an unforgivable, horrible affront that made me continue to rage for as long as the affront continued.

I wonder if the profusion of teachers without training in better ways to handle children that are upset has something to do with spending cuts for education in the US. These cuts have occurred since the 1980s for the sake of cutting taxes for the rich.