Of what relevance are kids? We're talking about adults. When was the last time you hired a teacher instead of turning to YouTube (or whatever)? That's where teaching is effectively dead, lost to automation.

Children require care. Again, "teaching" survives when children are present because childcare is the functional service offered. There is no impetus to move to automation here as childcare is not easily automated, necessitating a warm body anyway. However, the value of a teacher is constrained by the value of childcare as there is no longer market value in teaching alone.

Like I said in the other comment, teaching outside of schools for children isn't even recognized in the word teacher anymore because the career, as a general one, effectively no longer exists. You've proven my point.