No, it surely isn't.

In the US, it is generally legal to spank a child. Or do things like make them do physical labour or write the same sentence 100 times, knowing it makes hands cramp. The elementary and middle schools I went to technically could spank you with a paddle too. I'm only 44. I know similar things happen in other countries: Another commenter has a link with a map.

I live in Norway now. If you spank your child, even if it obviously doesn't hurt them, you can get child services visiting your home.

All violence sounds pretty extreme to me by most standards. For instance, boxing would be illegal, and toddlers would be in jail if seen hitting their parents/siblings. In practice I imagine it means something like "no violence from someone larger to someone smaller."

Most places no one really gives a shit if it goes the other way around, like young kid hitting parent or wife hitting husband.