Privacy

For sure. If we wanted to protect kids with no intrusion we'd just make an HTTP header that was "user age" and then let the sites decide what to show and what to block. Porn sites don't want to show dicks to 6 year olds, it'd be 10 seconds to make an nginx rule that says "if user age < 18, show static error page".

And that's it, easy peasy. If we wanted to, at that point we could start suing individual sites that choose not to use that information in order to get compliance, but probably we don't need to, since it's pretty easy to support and like I said, there's no money in showing these things to kids anyway.

But that's not what it's about.