Earlier quoted context omitted.
"Everyone must prove their age online now" creates a trail of identity that kills anonymous speech dead. Anonymous speech is very important to maintaining freedoms... such as freedom of speech and freedom of association.
Hard disagree on anonymous speech. Individual humans should have free speech but that is divorced from anonymous speech. With anonymous speech you don’t even know if you’re talking to a person or a program. If you want to say something, then say it with your identity. You don’t get to be anonymous when saying something to my face so why should it be allowed across a screen?
While anonymity comes with its own issues for society, I am not convinced it would be worth it getting rid of it.