One of the things about the dojo model of firearms training is that it requires the use of advanced students to train the beginners: The brown belts train the white belts because in doing so, they a) free up the sensei’s time and b) learn how to do stuff in the process of training others. An example:
Something that helps make Step By Step Gun Training’s Shoot and Scoots so successful is that they have experienced shooters who are NRA Certified RSO’s help the new gun owners with things like finger off the trigger while moving and how to do a safe presentation and reholster. The RO’s aren’t there to help shave 0.2 seconds off a draw: Their job is to get the newbies (white belts) up to speed and in doing so, reinforce those skills in themselves, and in the process, learn how learn so they themselves can become better shooters. There’s an initial sorting process that takes place with first-timers so the RO’s don’t train people who are absolutely new to guns: Those people are sent to a lead instructor to get the Four Rules and some basic marksmanship drilled into them before they hit the range.
This process of using advanced students to help guide competent but inexperienced new students helps free up the lead instructor’s time to a) instill a basic level of safety into the really, really new students and b) allow time to work with experienced students on areas like faster trigger speed and better gun manipulation. The dojo model needs a sensei, but it also needs lots and lots of sempai as well.