But it is society's problem, and within society's capacity to attempt to manage.
https://www.childline.org.uk/info-advice/you-your-body/drugs... says it's illegal to give a child cigarettes, and the cops can confiscate them if you're 16 or below.
> The law can't stop parents from being stupid.
Sure, but reality also often means smart, caring parents still can't stop kids from... being kids. I've lived in places where half a dozen public wifi hotspots were available; even if I didn't, chances are I'd have to let my kids on wifi for homework, on computers I don't have admin rights to because they come from the school.
They can't go sign up for a new internet plan, but that's hardly required.