You shouldn't have to, but sometimes you'll be brought to it.
I was a terrible child who realised I wouldn't be hit, to I went around beating everything that moved because I felt indestructible. Then my dad finally slapped me one on the arse and then I suddenly realised I wasn't the one in control.
Like a lot of things, physical punishment done to the bare minimum of necessity is the best course of action. There are few parents who will go through their life not having to slap their kid once.
I was a terrible child who realised I wouldn't be hit, to I went around beating everything that moved because I felt indestructible. Then my dad finally slapped me one on the arse and then I suddenly realised I wasn't the one in control.
Like a lot of things, physical punishment done to the bare minimum of necessity is the best course of action. There are few parents who will go through their life not having to slap their kid once.