Many years ago I worked a technical support job for Xbox services, and the amount of calls about "unauthorized charges" was obscene. Xbox provided parental controls, but it required the parent to set up their child's account themselves, and many couldn't be bothered.

I imagine the same thing will happen here...

And people give their children cigarettes and liquor, that's bad as well. But that's the responsibility of being an adult. If the adult is deemed not worthy of raising children, society has already established a process of dealing with that too.