I understand your point but you're trying to give K-12 teachers far too much credit. These teachers aren't needed to actually teach but instead to babysit kids that parents don't want to deal with. All these teachers do is READ a children's book back to the children. They are nothing more than book narrators something that can be automated and turned into an audio book or even a pre-recorded video lesson. The K-12 educational system is a cookie cutter educational system with no new content since the 1960's. There is ZERO need for real PhD educated physical teachers in a classroom these days. ZERO!