You are right about "a .38 on the hip". There is a well-regarded martial arts instructor who says that time and again, real self-defense devolves to a .38 on the hip.
You are wrong (or at least I disagree and admit that I may be the one in the wrong

that the original post is irrelevant. there is a generational difference at work.
Some of the Gen Z's will say "OK Boomer" and thereby dismiss and discount fifty years of experience, study and hard-learned lessons. Part of the difference shows on social media platforms where they meet and reinforce each other's mistakes. I may have done the same back in my day, I ain't admitting nothin'. There are younger men who literally mock anyone who carries a revolver!
The OP also mentioned people who are afraid to shoot +p rounds in their .38 revolvers. Some of these men seem to have overestimated the awesome magical killing power of those rounds. I am convinced that they are not interested in preserving their fragile handguns, rather they want to believe that they are carrying a weapon that is worthy of defeating every villain in the Marvel universe!
You have good things to say to them, IAM Rand, which they need to hear. Of course it is not your responsibility to teach them. You take care of your own family and your own students first. But if you will, there are some, maybe very few, smart ones who will listen to you. Some of these men and women simply had no worthy person in their life to give them the kind of guidance that you can. You may not like having to repeat yourself but that sure does not seem to bother others here on our forum, so go ahead. I have appreciated your thought from time to time if I never said so.
Respect to you!
BrianD