If you want me to be on topic I don't have a problem with that.

>>Should parents spank their children?

No, they shouldn't.

Is it enforceable? No.

In my opinion, however, legislation is often an agent of social change in it's effect on attitudes.

One of the things that has changed in my lifetime here in the UK is that it is no longer considered reasonable to hit your wife. Part of that social change has been the legislation which reinforces it as an unacceptable act. There are a small selection of songs here about the subject, but I can't recall many recent songs about it - especially portraying it as a reasonable thing to do.

Would it be better if we returned to that world?

(Slag, if you are a true pedant, then you shouldn't split infinitives!)