It's a mix of what they can do and what they're likely to do. They just have to be able to go back to voters and say they're doing something.
If you think that the fact that they did the wrong thing is an argument for not doing anything, you clearly are blind to politics & history.
And age verification being the wrong solution to the "privacy problem" doesn't remove privacy from lawmakers' crosshairs.
None of these groups will because they profit too much from disrespecting their privacy. The average child would be far safer if they used the Dark Web. I'm not sure why the "richest country on earth" is engaging in zero-sum behavior, but those are the kinds of contradictions such behavior creates.
[1] https://www.pewresearch.org/short-reads/2023/10/18/key-findi...