This proposal started as a Chris Rock joke and has become mistaken for a serious part of discourse about guns. Any time someone brings it up, it's easy to know that that person hasn't taken the time to gain even a cursory understanding of how firearms actually work in human society.
So, let me state the obvious and dispel this notion: The last thing we want are unpracticed hands ahold of guns in our communities.
Basic competence with a handgun takes many thousands of rounds of practice.
We would be much better off effectively banning guns in the US, but that's not going to happen.
PS: You can practice just fine using rubber (wax etc) bullets. (which are still very dangerous.) There not ideal, but basic competence works just fine.
So, let me state the obvious and dispel this notion: The last thing we want are unpracticed hands ahold of guns in our communities.
Basic competence with a handgun takes many thousands of rounds of practice.