> Cuz fights in the schools where I used to teach math would end up with kids in the hospital or dead.

I guess not all schools are the same. There is no way this would happen in any school I went to. Such school wouldn't probably even exist for a long time. Tbh, if such incident happened more than once, it would probably end up on national news. Then again, I'm not in US. Sure, there were bullies, but what you describe is just as completely foreign concept as your experience is to me.