Because the job gets worse and worse. I don't know for sure about teaching in college but that appears to be under attack too. There's just alot of us who wouldn't do it again, teachers are leaving in record numbers, we can't get subs because the job sucks, paras are vastly underpaid, and the amount of verbal and physical assaults from kids - basically all the behaviors that we complain about - make the job miserable. Trying to get kids to do things they don't want to do isn't easy. All parents know this, but then try it with 25 kids from various backgrounds. Louis CK explains it briefly...Why not education?
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