This is a really hard question/topic.

But first, why do people rob banks? They don't have that much money on site, and you just changed everything from local cops to the secret service and mandatory federal trial. Just the shtupidist direction to go in. And your friend's druggy really messed up in his backyard.

When a person, who is struggling, finally figures things out, they think that they are a god, or something. To finally dig themselves out of a hole. And so, with a whole lot of learning under their belt, they also find themselves as amateur therapists.

That said, all the people i respect on therapy, are life coaches because you can't do the real stuff with a license. So much of the stuff that really works is forbidden by the APA. Yes, the stuff that works is verboten.

Soooo, there are very few real teachers. And usually, they teach by doing, and the student just has to be watch, and then do themselves. It is very effective, for the right students.

But, as you say, most people who would make good teachers are doing. And so, don't really have time for students. Especially half assed students.