While likely a true statement, how would you suggest to ferret out those who don't possess the maturity or common sense to carry and still maintain an issuance scheme that was based on objective criteria and not subjective opinions of government bureaucrats?
Unfortunately there is no easy way to figure out the bad eggs from the good eggs when it comes to CCW. Extensive training in liability and legal procedure may provide a foundation for most and may reform those Rambo wanna be types.
People need to be educated that they are accountable for every single round that is fired. While they may be attempting to stop a crime it does not justify a single loss of life on their part. While it may seem like common sense to most of us, when you add a sympathetic nervous system response to the mix most people forget to ensure they have a clear back drop before they fire. That is something that has to be trained and practiced.
In the heat of the moment your vision narrows, heart rate increases, and you experience auditory exclusion. You lose complex motor skills. If you don't have training in how to react when the shit hits the fan you may end up killing someone innocent. It may be the little girl standing behind the suspect, in the background.
Maturity, that's a huge one. Knowing when to intervene and when not to. Weighing the risk vs. benefit. Knowing when it's better to walk away vs. escalating. Knowing how to lower your head, put your ego aside, and make a mature decision based on logic not emotion.
I'm a firm believer that if you can't defend yourself without a gun, you have no business carrying a gun for defense. Learn how to fight before you even think about CCW. You may have to fight to maintain possession of your gun.
Just my 2 cents.