I'm no Rob Pincus fanboy, but I do like one area of instruction that he advocates, 0 to shooting in 5 minutes.
Let me tell you why. Recently I had the opportunity to join a group of people that I work with in a golf game at Top Golf. This is a driving range atmosphere where you hit balls out over an area that has targets. The targets have a system that gives feedback as to how accurate that you are. Sounds a lot like shooting guns right?
I have played golf about 6 times in my life. Fun sport but not fun enough to really interest me so when I stepped up to the little green mat, I had no idea what I was supposed to be doing except taking a long metal thing and whacking a white ball with it. Most of the people that were in my group had golfing experience. One handed me the correct club for what I was doing while the other started to instruct me on how to hold it, how to stand, keep my legs this way and my back that way, etc. Pretty soon I had a list of about 20 items in my head that I needed to do in order to hit the ball the correct way. The first time I hit the ball I got about 3 of them right and of course the ball did not go anywhere near where I wanted it to.
The same thing can happen when you teach a beginner to shoot. I have sat in an NRA basic pistol class where the instructor went on and on for half an hour about gun handling, what kind of guns there are, how to load them, etc. and guess what...nobody remembered half of what they were told.
I like to keep it simple, get the basic safety rules down and burned into the student's head, then stance, grip, and sight picture. I don't take much more than 5 or 10 minutes to do this because at that point to continue would be diluting the importance of the basics.