That doesn't sound like your ordinary state secondary,,Bizzy.
Lulu, your DH sounds like he is fairly senior (year head/assistant year head?). Why is he leading Child Protection sessions? Usually the head teacher is the safeguarding officer and as such would lead such sessions.
Yes, Toto, I would listen to the other teachers here. I am support staff in a secondary school and while not in classrooms so don't see most of the teaching aspects of school (ha! You'd think that would be the MAIN aspect but NO!), I know fully well how bad all the other stuff is as has been well described unthread.
For years since childhood I wanted to teach but I ended up not doing it for one reason and another (mainly because other teachers put me off!) and now and again wonder if I should just do it otherwise I may regret never having done it. And then I listen to my teacher colleagues and sit in an Ofsted briefing and hear the ridiculous requirements for inspections (schools all have the same standards they have t follow regardless of intake or gender of pupils or area of deprivation which brings loads of problems etc. ) and deal with a feckless parent who can't be arsed getting their kid equipped/ in correct uniform for first day back, or even to bring their child to collect their GCSE results and I tell myself "no, you made the right choice all those years ago."
Some of the parents are AWFUL! Meet the parents and it explains a lot about the kids. you aren't even allowed to be forthright with the parents as you can't upset then in case they complain about the school.
Don't do it unless you can be guaranteed of a job in a fantastic school.