It takes more than ‘a few simple courses’ to learn how to handle an active shooter situation. I’ve been shooting guns since I was about 8 and for many years had a valid carry permit. I have literally thousands of hours of range time and hundreds of hours on interactive ranges. This equals thousands of dollars in range time, weaponry and ammo. Not to mention the cost of qualified instructors. I’m not trained to kill but I was trained to shoot with accuracy. Do I think I could disable an active shooter amidst the confusion of such a setting… No way. That kind of skill comes from someone who was taught how to shoot to kill. I have a dear friend who was a sniper in one of our gulf wars. He admits he was trained to kill, shooting was just part of it.
AAQ for many years bolt action rifles were the game (deer etc) hunters weapon of choice. Colt was responsible for marketing the AR (type) as a hunting weapon calling it ‘the sporter’.