Sadly what killed k-12 teaching as a profession was a side effect of allowing women into the rest of the workforce. For a long time, teaching was one of the fe

Sadly what killed k-12 teaching as a profession was a side effect of allowing women into the rest of the workforce. For a long time, teaching was one of the few professions allowed to women. Thus, the best women became teachers, if they wanted jobs. When you have the choice of becoming a teacher or: a doctor, investment banker, scientist, lawyer, etc., it isn't much of a choice.