I think you're optimistic about the overlap between "people who tit about with guns" and "people who absorb education".

I dread the outcome of practical safety lessons because, the moment you give a classroom guns, then some teenage edgelord is going to pantomime shooting their buddy, or escalate a playground beef.

People do not work the way you want people to work :-(

May i offer an alternative? Make gun ownership a tedious bureaucratic procedure. Reams of paperwork will filter out many stupid. Stupid exist who can fill forms, but it's a smaller set.