There are problems with arming teachers and setting up metal detectors in schools in order to deter school shootings.
Money is one problem. Schools already are underfunded, and using tax dollars to arm and train teachers would be an incredible waste. Five hundred dollars for a metal detector might sound cheap. But to a school that can barely afford school supplies for teachers and students, it isn’t.
Another problem is that armed teachers and metal detectors don’t actually address the issue of gun violence. Things like licenses, registrations and insurance for guns could help the problem. Raise the legal age to buy a gun. If the drinking age is 21 because people can’t drink responsibly when they are younger, then they probably can’t use a gun responsibly either.