That's not the conclusion I'd draw from that body of evidence.
It can be a simple chain of logic saying: % of children try to test their boundaries. Of those children some get away with it, some don't. Of those who get away with it, they carry on doing it, and it has reprecussions down the line. If you look at the problem this way, it's a rational take on caning - to tighten the net against bullying.
Posted more context here:
But is that research of high quality?
For the record, bullying is a complex problem to solve, and no nation or policy or tactic has the silver bullet.
1. Yes, smacking your child on any part of their body, including the wrist, is violence. You're trying to make some kind of "a lot of violence might be wrong but just a little bit of violence can be useful" point? I don't get it.
2. No, I don't agree that "imprisoning children is wrong". Sometimes children commit horrible crimes, like murder, and they need to be imprisoned. If you want to say that grounding your child is also a form of imprisonment, it feels like a stretch, but sure, we can call that imprisonment too. I don't get what the point is, though.