People offended just by looking at this picture out of context should really try explaining their preferred authoritarian social policy to a teenager who wants a part-time job but for whom some people would forbid them by penalty of the law.
Spoiler: They won't understand why you should have any authority over their body and time.
I don't understand why you should have that authority either. I mean, where does it end?
What are your criteria for exceptions? Shouldn't it be between the kid and their parents, and not you?
Are you imagining there is a parental figure with a bull whip for this kid in the back office and you want to outlaw physical abuse? There are already separate laws for that!