Question is, are kids in more danger at school than they would be at other places where they might commonly congregate? Probably not.
Probably yes when you are talking about public schools.
They are specifically free fire zones because they have disarmed all the adults in there, usually by law.
Which is why some parents choose private schools where one of the selling points (aside from your kid actually being taught real stuff rather then some made up crap) is that the majority of the teachers carry.
Chicago.