What kind of behaviour is that? And 6% is pretty low, especially since I doubt most permit holders actually carry a gun most of the time.
What do you think would happen if there was a credible threat of a gunman running amok in an environment like a university campus (many people but not crowded, lots of cover) where a large percentage of people is armed? Someone gets shot. Everyone draws their guns. How do they identify the killer? What happens to the first person who correctly identifies them and shoots at them?
Maybe in your imagination people with concealed-carry permits are a bunch of nuts looking for any excuse to open fire. But that's your imagination.
Walking around with a gun drawn is stupid. They aren't going to go "hunting down the gunman." They know that they are a totally legitimate target for the police in that situation.
There was a mall rampage where exactly this scenario played out. A civilian with a concealed pistol identified the real attacker but hesitated too long to take the shot and was gunned down (by the rampage attacker). In general civilian gun carriers are very hesitant to take even clear shots.
What do you think would happen if there was a credible threat of a gunman running amok in an environment like a university campus (many people but not crowded, lots of cover) where a large percentage of people is armed? Someone gets shot. Everyone draws their guns. How do they identify the killer? What happens to the first person who correctly identifies them and shoots at them?