This school sounds awful. Nothing wrong with a healthy vegetarian lunch, but the cost of £2.50 a day is too high for something that's compulsory. I guess they don't want children who eat limited diets due to sensory or other issues in their school, either. And the behaviour policy is needlessly punitive.
"Two demerits = automatic detention. Demerits can be incurred for infractions such as turning around in class, calling out, failing to listen attentively, behaving badly outside of school, failing to bring correct equipment, failing to complete homework, or being late."
And their 'internal isolation' is from 7.30-5 - longer than most adults' working day.
There's expecting children and young people to behave in school, and then there's expecting little robots instead of children. Horrible.