After the Parkland school shooting, the school district where I teach passed a new rule, requiring teachers to wear ID at all times. I am not sure how that will prevent school shootings, since shooters are almost never adults. They are almost always students or former students.
So sure enough, the next year a rule came out requiring students to do the same. Teachers were instructed to write a discipline referral for any student seen without a visible ID. So we began writing the referrals. One student told me “They can’t suspend all of us.” What eventually happened was the rule was no longer enforced, so that, after about a month, there were no IDs visible on a single student, and about a quarter of the staff stopped wearing them as well.
Now I see that schools are going to require all teachers and staff to wear a mask at all times when they return to school in the fall.
Good luck with that.