Addendum.

Part of me wishes a little that I could teach the language that I've been researching intensively now for a number of years and have made myself into a historic top-flight expert in, but as soon as you start filling in details to that daydream, it starts to fall apart...

First, teaching a class is a lot of work.

Second, how would that even work with your dayjob -- they couldn't ask people to pick up your work for an entire semester, while, conversely, does it really make sense to add that teaching into your schedule and displace research hours, all for not that much money and no guarantee that you'll teach the class again, which is the point where you have ready-made lesson plans and it becomes more time-efficient to teach and it increases your effective hourly wage?

Third, who would you even be teaching? Usurious tuition hangs over everything, and the advanced students don't know enough to appreciate you, and even if they would long-term, there's no jobs or decent chances at jobs waiting for them, so it would be cruel to encourage them in that, even if they say they're not hoping in that direction. And, it would be fun for people who just want to learn, but, I mean, if they're just doing it for fun, the undergrads can have fun getting stoned and watching Teletubbies, too.

Fourth, even if this was part of an advanced program, many of them have predatorily-priced master's degrees, which would just pervert the learning experience by compounding you into highly unethical behavior set into stone through the enrollment framework.

If there was a school where tuition was fair or it was advanced degrees for learning's sake, then fine, it might be worthwhile, but why go out of your way, otherwise?

It's like the employment system and profiteering have severely reduced the space where I would want to put myself forward as a teacher. I honestly would rather just put on an informal open class for whoever wants to come for free. I mean, I actually wouldn't do that since it would take away from my research and writing hours, I'd rather not teach at all, but, my not sharing my expertise somehow also seems like a tremendous waste, too -- it just seems somehow like it should be put into practice more, teaching-wise!