I didn’t start school until 1969 when i was 4. At my infant school I can’t remember corporal punishment but the teachers were quite strict and looking back quite sadistic in some cases. If someone had diahorreah and didn’t make it to the (outside) toilets then they used to stand them against the wall, line the whole school up opposite and then proceed to make a fool of them. Once I had asked if I could go to the toilet and was told no, there was only half an hour to wait. I didn’t make it and weed down my leg in pre-lunchtime prayers. I got told off for that and stood in the corner. We were also made to sit there until we had eaten all our food,even if it was a horrible gristly stew.
We had corporal punishment at my junior school and this could be the cane, smacking or the slipper. The cane was given in the headmaster‘s office but any smacking was done in front of the whole school. Everyone was made to line up in the hall while the punishment was given, the children were then made to stand at the front crying until the headmaster was satisfied.
He also used to randomly smack people for no apparent reason then make a justification up which genuinely had no basis in fact, and we all knew it.
Once we were on a trip to the Lake District and a branch was banging on the window. One of my friends was genuinely frightened and was told to shut up and then slippered until he did so. He spent most of the rest of the night sobbing quietly.
I don’t know if Borstal worked. The children weren’t in the school so not disrupting anything there but all the people I knew who were barred from the schools and supposed to be in special school/borstal spent the days stealing cars/breaking into buildings/lighting fires etc. So not really any better for society.
No corporal punishment at the Grammar school I went to but you didn’t mess with some of the teachers! They would find some way of getting at you, such as making you stand with arms outstretched with a blackboard rubber on each hand. If you could keep your arms up for 5 mins you avoided detention, and if you think that’s easy just try it! Your arms ached for several days afterwards.