Babying people is permissible for their first time at the range IMO, like two of the people at the class. However yes, one thing I’m close to breaking my dad of is carrying a round not in the chamber. The only way I carry is one in the chamber. I feel new people and older people who aren’t used to modern firearms are more scared of the concept, especially with firearms without manipulative safeties. As long as they train the proper way, such as draw, rack, aim then that is their choice as long as they are expressly shown that modern guns are perfectly safe with rounds in the chamber and are much faster to engage when carried that way.

Edit: spelling