This reminds me of a conversation with a colleague who was a seasoned ex teacher. They said that their options to address anti social behaviours in the classroom had been declining and as a result the behaviours increased, with some kids seeing the opportunity to dish out disruption and abuse with no consequences. Parents would always defend the kids. Parents of the victims forced to change schools rather than the bullying being addressed. Anyway they quit teaching. I imagine the stress for teachers is fuelling some of the teacher shortage. The bad behaviour affects them too.