The way I look at it, either you can be trusted on the streets armed, or you should be confined to jail or a mental institution. The idea that there are people who can't be trusted with a gun, but who can be trusted not to try to obtain one, strikes me as wishful thinking. And it's also the rationalization for 'background checks' and other infringements on the RKBA.
Do you think it would be OK for a community's government to make an ordinance that everyone is required to carry, with provisions for a yearly tax on COs (to cover the extra policing costs that their selfish irresponsibility entails)? How about a law mandating that you produce a pistol when you go to vote?
The point I'm trying to get across is that being armed is rather like voting or jury duty, occasionally inconvenient but necessary for the preservation of a free state.