It's spelled out everywhere in the bill. They make it so scary to serve content to children (knowingly or not, since it's so vaguely defined) that you'll either

It's spelled out everywhere in the bill. They make it so scary to serve content to children (knowingly or not, since it's so vaguely defined) that you'll either have to A) Verify age (which requires identity) or B) Lock it down for everyone. Making a person/business predict someone's age over the internet is just absurd... and fallible... so you will have verify identity.