Minors already aren't allowed to look at porn, and in fact they're not even allowed to access the internet. I mean, when you go to an ISP to purchase an intern

Minors already aren't allowed to look at porn, and in fact they're not even allowed to access the internet. I mean, when you go to an ISP to purchase an internet plan, they're going to ask you for ID and they're going to verify your age. It is then the parents responsibility to monitor that. If parents choose to turn around and grant their kids free access, then fair's fair. Just think about alcohol and tobacco. The clerk is going to ask for your ID in the store, sure. But they're not gonna follow you home and make sure you don't slip your kid a cig or a bottle. That's not their responsibility, their transaction is done. And, actually, in a lot of places this is explicitly allowed. I think in most US states minors can drink under adult supervision. So, if we want to solve this, we need to aim at the parents and convincing them (as well as giving them more tools) to do this reasonably. These identity solutions are a tool, but IMO, a rather blunt and unnecessary tool.