Growing up in Mexico, getting hit by your parents as punishment was pretty much the norm, everyone did it, i´m 40 btw. Times have changed, it's still widespread but in some places it's frowned upon, i have three kids myself and i have never laid a hand on them, ever, my wife has sometimes out of frustration, nothing too bad, maybe a slap. Depending on how you hit them i don't think it's that bad but i'd never do it. There are worse things you can do to a kid than hitting them (as long as it's not too violent). verbal abuse is much much worse IMO.