My DD started at an academy that was extremely strict like this. We thought it sounded great on paper and felt really lucky that my Dd got a place as it was hugely oversubscribed. DD is a bottom set child but with impeccable behaviour so I thought a strict school would be great for her.
In the end the constant witnessing of kids being sanctioned for really minor or accidental rule breaking sent her anxiety sky high and she started having panic attacks.
She was once given a detention just for being in the toilets at the same time as another child was discovered in there with a phone. I had to put my foot down to stop her being put on a month long behaviour report but had to accept the detention in order to win that battle. She had done nothing wrong except be in the toilet during lesson time ( she was in early stages of IBD at that point so needed the loo a lot)
They had no skirt option for girls because they didn't want to police skirt lengths. But then they started calling girls up and pinching the fabric of the trousers and would send them to isolation if deemed too tight. Humiliating for teenage girls and it's no wonder a culture of not eating lunch developed. My DD developed an eating disorder and is still struggling with that now.
No phones allowed on the premises and regular random pocket and bag searches were carried out. DD never had her phone on her but would have anxiety attacks where she suddenly worried that she may have accidentally left it in her bag.
Detentions issues for forgetting to bring one single item to school.
No option to sit out of PE. My DD was really ill with what we later discovered was Crohns and I was desperately trying to keep up her attendance even though she felt rotten. I got permission for her to sit out of PE but then discovered that she had been made to change into her kit and sit on the grass of a cold field in November in case she felt up to joining in ( she was bleeding from her bottom and suffering agonising pain at the time but the school said rules are rules - two days later she was in hospital as an emergency admission.
Eventually at the end of Y8 we had to remove her. The environment was toxic. The children were encouraged to snitch on each other and bullying outside of the classroom and on social media was rife. One child threatened to plant something on DD to get her into trouble when there was a falling out in a friendship group.
DD was terrified. All this while dealing with an illness that the school were not particularly supportive about ( they agreed verbally that she could use the disabled toilets but whenever she did she would get shouted at and questioned about her hidden disability )
She's at a new school which is far more relaxed and her school life is now enjoyable and productive.