> And some kids haven't got their head straight after puberty at 16, and still need (or would have needed) the training wheels.

But on average they don't.

> Society works on averages.

Right. So setting the rules around the outliers is wrong. Glad you're clear on that.

> Most people being ready little adults at 16 doesn't mean everyone is.

You don't have to be a completely self-sufficient adult to handle the freaking Internet.