*I don't know the Swan or what its catchment is like so am more speaking generally...
I think it is sadly quite a privileged problem (and not saying that in a patronising way, I didn't understand it until I worked in education and social care) to not understand these schools.
Really sadly behaviour, bullying, gangs and abuse is extremely common in many schools, especially where there is a high proportion of students from poor backgrounds. The corridors between lessons are where constant issues happen from low level bullying to physical violence/fights. It is where extreme time is wasted and children end up late for lessons hyped up and angry about what just happened in the corridor.
For some schools it is not an option or choice but the only way to make it safe and make sure learning happens.*
I agree with this, l went to a poor comprehensive and as a quiet child who was shy but keen to learn l ended up hiding in most classes as it was too loud and disruptive. I was desperate to leave school as a result which was a terrible shame.
I would have loved strict discipline in class in class and corridor silence.
Hence my Dcs have gone to strict schools, there is very little disruption, yet they are still treated with warmth and respect by their teachers, but the rules are enforced, they are both confident, learning extremely well and generally happy.
We are sadly breeding a generation of largely undisciplined people.
I see it in the workforce constantly and that will severely disadvantage the UK for the future.