Yea I have never heard a story of someone who was failing at school, but got their shit together when an inspirational teacher called them a name.

Agreed.

And the fact that this teacher is sharing screenshots of private conversations with parents online makes me think it’s not such a bad idea if the principal does get involved, just to make sure everything is okay in the class.

Flexibility is a pretty broad term. The point is that having children can give parents a special excuse to ask for flexibility. But there is important stuff going on too in the lives of people who don’t have children, but they don’t have this special excuse. The need stays the same: flexibility