It's even more aggressive than that! Some who are ignorant can acknowledge that fact when confronted with the truth. Some of those may take measures to improve the situation. The people to whom I referred are apparently incapable of comprehending that there is something they don't know.
In the class I helped Randy in over the weekend we had one guy who wanted to use a revolver. We said that was fine, if that is what you carry, by all means practice with it. We did warn him that it may he tough to keep up with the rest of the class. Much of this class was shot from retention. We did everything dry first and put it in context. This guy kept jamming his revolver out and into the opponent. I showed him the proper number two, he said since he was using a revolver that wouldn't go out of battery like a semi auto, he preferred his method. I tried to show him again the other reason we were doing it the way we were doing it and he said he didn't like that. At this point I just said fine do it the way you want. I wasn't going to waste my time on a guy who had no intention of doing what you asked him to do when there were 17 other people in the class who were willing to listen.