Oh, right..
If there was a way to prove one's identity/age online, double anonymously (so both the website doesn't know who you are, and the identity service doesn't know what website is asking) I'd be a 100% for it. It would prevent minors from accessing stuff they're not ready for (on average), and it would limit the amount of bots and foreign interference.
Maybe it'll die off in a generation or two, when cynical millennials and zoomers become the backbone of politics. But for now?
"Think of the children" is hilariously transparent to us, but it enjoys moderate support across population, and, much worse, it gets overwhelming support of geriatric politicians. Which is what makes fighting for liberties so hard.