If the job pays more for having a Masters degrees, then some can get paid more for getting gun training.
Only if the union and the school district agree on that in the next round of contract talks.
Look, I don’t think this is a bad idea. I just think the barriers to its ever getting done are insurmountable. The institutions that would have to go along with this are the very institutions that failed to prevent this shooting, even though everyone but the cat was telling everyone else, “Yo! This kid plans to shoot us all!”