[zulban]

> One student learns more about one narrow topic and then dismisses the teacher's broader, but shallower knowledge as being that of a non-expert.

Perhaps you're talking about me (I said teachers are generally not experts in anything). I was a teacher for a few years and got a master's degree in education. That doesn't mean I'm right but I don't think it's smart to dismiss people on the internet as "probably just some dismissive student with narrow expert knowledge". I don't think I'm "general population" on this subject.

Teaching in North America has low professional requirements and even lower pay. The profession gets almost no respect. As a result, experts in anything (including experts in education) are pushed out of the career because it's a shitshow.