I was in school until leaving 5th year in secondary in 1985, which was around the time the belt with withdrawn.
The belt was an excellent, and only occasionally used, deterrent and children were much better behaved in school. Good behaviour was expected and mostly given apart from a small minority that were not allowed to disrupt or distract whole lessons.
We were pretty tight for money, I was from a family of 5 siblings and wore my 3 older brothers hand me downs. Winter coats were either way too big or lasted until the sleeve cuffs were a good inch or two above your wrist. Shoes were practical and durable never fashionable. I was never bullied for the clothes I wore.
Any real bullying, and there wasn't a lot, was sorted out amicably between the parents directly, they mostly accepted their child wasn't perfect/innocent/wrongly accused. If you did get up to anything your parents would hear about it as everyone lived near the school and their were eyes everywhere, they knew each other and usually socialised in the local pub, they would be mortified if their child was branded a bully and would sort it out.
I would hate to go to school now with the lack of available direct action for teachers to stop troublemakers causing distractions for whole lessons, with the issues of mobile phones, much more materialistic children that put too much value on looking fashionable and competitive parents more interested in playground politics.