Actually, I find this to be a reasonable thing, but pretty much all political endeavors came quite a few decades too late for that party. Now, every implementation of such user verification will have so many holes in it, you'd wonder whether it's got enough substance to even be called swiss cheese. Probably more like some bits of cheese dangling in the air. At least as long as single countries still try to do crap themselves while the internet as a whole simply continues defying political borders.
The principle is very easy: You do have a government-provided ID, a proof of your citizenship, you're required to have offline, so the idea that the online world is somehow excluded from that requirement defies simple logic. It's not a different world, it's an extension of the offline world. The fact that we didn't have such ID all this time simply shows that technology got politics beat in speed by orders of magnitude. And still can't catch up, as UK and other jurisdictions are so kindly demonstating.
When something started as a research network, an implementation of some sort of ID is the farthest thing from being the next feature to be implemented – doesn't help the tech, after all – and by the time that research network reached a certain size it was already too late to implement anything like that.
Those who grew up with the internet will consequently see the absence of ID as the norm there. Authorities don't have a choice but to cling to the technical data implemented by those engineers for technical reasons and declare it PII, personally identifiable information, so that their offline authority can be somewhat applied in the extention that is the online world.. but this is so imperfect that by simply changing said PII, especially the IP address, you can evade responsibility for your actions. It's why people use VPNs and proxies – never met a person in my life who enjoyed being fined. Something that is quite difficult to do offline, though. You've been responsible for your actions ever since you can remember, so why is it supposed to be different online? Remember, it's not another world, it's an extension of the world you actually live in. Offline rules should apply.
So any and all attempts to apply offline policy to the wild west that is the internet today will elicit, of course, reactions like yours. Which are understandable, you grew up with that standard. You've never known anything else. If we really think about it, the internet is the centerpiece of early 21st century society – everything revolves around it. It drastically impacts the offline world. And to prevent that online wild west to swap over to the offline world, the offline world must take measures to reign in its extension. It is only natural.
Of course, this requires a proper execution…
So, nothing dystopian with online age verification when we've been having this for maybe hundreds of years offline. It's high time, really. Unless you think offline age verification (as in, owning a citizen ID) is also dystopian…
It's exactly why UK's endeavor will not show the desired results. A UK law won't force an Italian website to verify the visitor's age, even if said website is a VPN provider. It's outside their jurisdiction. As long as single jurisdictions do things in a single fashion, the internet will remain as it was. And AirVPN will remain as it was.
There'd be a higher impact if UK would suggest such a law to the European Commi..ssion.. oh. Guess, that ship has sailed. ¯\_(ツ)_/¯