Well lack of age verification definitely isn't fixing anything either so what's they play here? We all just collectively as a society just shrug like oh well, no fixing any of that?
No, we should take measures that actually address the problems that exist. Problem numero uno: the Big Tech companies are creating systems and digital environments that are hostile to everyone (of which children are a subset), compelling everyone to use them, and punishing those who attempt to get away. We cannot fix that by merely dictating terms, especially if those terms are such that only the Big Tech companies themselves could possibly know enough to enforce the terms.
Ok we might be in violent agreement here but so far I've yet to see anyone put forth anything like a serious plan to dismantle Big Tech, which clearly indicates that "triage legislation" half measures are the only thing currently on the table. I see little sense in letting perfect be the enemy of good.
https://airesistlist.org/ (currently down: see the Internet Archive) has links to several concrete projects, including https://di.day/en (see also, https://european-alternatives.eu/, https://switching.software/). The IndieWeb (https://indieweb.org/) and the Fediverse[1] are both movements to take back parts of the internet. We can all make small changes in our lives: what would you do, if you refused to acknowledge the existence of Big Tech, and needed to choose another approach? And can you do this, in practice?
Low-tech Magazine (https://solar.lowtechmagazine.com/) has enough articles to publish a thematic book, “How To Build a Low-tech Internet?”. There are other books with concrete proposals: pretty sure Cory Doctorow's published a few (Chokepoint Capitalism, also by Rebecca Giblin; Enshittification; possibly others). You can read these if you would like. But the important part is using and maintaining credible alternatives, reducing both our dependence on and support of these companies.
[1]: although more work is needed to reduce the addictiveness / increase the user empowerment of Fediverse UIs (which are largely modelled on the corresponding Big Tech social media systems): websites are still the way to go, if you can.