Kids being banned from social media is just one side of the coin. _Everyone_ else being forced to KYC with random websites is the other. I can’t help but wonder, which of the two outcomes is the actual goal here.
Aside from YouTube I don't particularly engage with any of these often, but my Google, Facebook, Discord, Twitter, Bluesky, (current) Reddit, Slack, Telegram accounts all seem to be BAU without new requirements.
If the 80% of us currently holding unambiguously-over-16 accounts are exempt, and it only affects future over-16 users as they're onboarded, then it is a very blunt and very slow form of data harvesting which won't yield useful results until years/decades after all of the relevant decision-makers have moved on, retired and/or died. So this seems unlikely?