carpedebass, this is one of the problems when the SHTF time many will die because they waited one minute to decide to shoot or not to shoot when danger is coming right at them.
On your “The reaction has to be instantaneous.” this is not easy to learn. It is like trying to teach a poor person how to do business. You have it since you have been dealing with it everyday. Experience to use force in a real life and death situation is not easy to teach someone else. I know for a fact that you didn’t learn it the first day or month that you started working as a correction career.
I believe many preppers will have a hard time with this. The preppers that have a background as you do will not.