I'm always unclear on posts like this what exactly constitutes "a smack" or "smacking". For some people it's one hit on the hand. For others it's one hit on the fully clothed bum. For others it's multiple hits on a bare behind in public. For yet others an implement is used. And for others there's a range of implements.
Some call it hitting, others smacking, others spanking. Some talk about being beaten, others whipped. And the differences between all those terms aren't really defined - because between households it appears different terms are used to mean the same things.
The threads are always the same with people saying they agree or disagree, but the examples they give are often wildly different.
Which kind of demonstrates why the law that you shouldn't hit your children makes sense. Straightforward, simple and easily communicable.
I have been in years of specifically targeted trauma therapy for the physical abuse and threats of it from my mother. I'm not going to detail it, but suffice to say, some people on this thread "had it worse".
So, at best we can say that it doesn't harm all children, but can have lifelong negative consequences for others and there's no way of knowing which category your child falls into, until it's too late. So why, as a parent, take the risk?
I've never hit mine. I knew even as a kid that it wasn't necessary because my friends who were never hit weren't all criminals, they were normal kids, doing normal things. Just like me. So, what was the purpose of hitting?