There's also the 'that's their job' mentality that I referred to in an earlier post. It spreads from parent to pupil. You'd tell a child to pick up a piece of litter they'd just dropped and the initial response would be 'There's someone paid to pick that up!'
Retired primary school teachers of my acquaintance have told me that things have become much worse in primaries of late.
Societal norms appear to have changed as well. In a pp (and elsewhere on these boards) I've referred to the miscarriage precipitated when a 14/15 yr old boy punched me in the stomach.
Now, I wasn't visibly pregnant at the time - it was very early days - but it used to be that a boy wouldn't have dreamt of deliberately hitting a woman or a girl. In my case, the perpetrator actually boasted about punching me later - after he'd left school.
When I started teaching, any boy who hit a girl would be berated for being 'a lassie basher'. Latterly, I was seeing cases of boys threatening or deliberately hitting girls. (We had one boy who shoved a screwdriver under a girl's throat when they were in Woodwork Dept. The boy concerned was 11 yrs old.)
I recall when I was a young classroom teacher one of our boys bumped into a pregnant school secretary and he was absolutely distraught about it. (Fortunately, she was fine.)
It used to be much easier for a female teacher to break up fights between boys - the unwritten code of conduct meant that the boys couldn't risk hitting a woman and it gave the boys an excuse to stop the fight.
During my last teaching stint, I was hit twice stopping attacks involving boys. (I'm certain that it wasn't deliberate, but the 'Don't risk hitting a woman!' rule no longer applies.)
During the same stint, a very heavily pregnant Pupil Support Assistant in another department was hit when a fight broke out. The boy concerned wasn't even apologetic.
A young teacher from our department was hit the same day. She was told that she had not right to request the culprit's temporary removal from her class.
It's starting at primary. I had a conversation with someone who's just retired from the primary sector and she'd had enough of the increasing violence towards primary staff, including sexual assault. (In Scotland, cases involving those under the age of 16 are not referred to court but to the Children's Panel.)
It's not just happening in Scotland:
https://www.independent.co.uk/news/education/education-news/pupil-violence-behaviour-teachers-pregnant-staff-schools-nasuwt-a8880166.html