If something like this was in widespread use it would have much more impact since countries would see whole swathes of the internet immediately go dark when they make stupid laws.
I totally agree but the UK government – particular Labour – doesn't want people to take responsibility really, because that would take from their own 'power'. There's nothing the UK loves more than a stupid population hooked on benefits and devoid of education, critical thinking and financial freedom.
I think the Greens are opposed to it, and maybe Reform in one of their populist speeches, but the majority of UK representatives seem to support this law.
Based on this poll, most Britons also support the OSA: https://www.ipsos.com/en-uk/britons-back-online-safety-acts-...
Then the bill payer can enable or disable access for three categories
* Under 18s
* Over 18s
* Unknown
as they are the bill payer and entering into a credit agreement requires you to be over 18. If you wanted belt and braces the phone companies doing PAYG could set it to disabled unless you authenticate your age to avoid the "buy simcard for cash" loophole.
ISPs could choose to implement finer grained controls in their routers. The majority of the big ISPs would likely block the "over 18" category by default.
The people writing these laws don't know about DNS.
This isn't really relevant because what is considered "suitable for under 18s" varies wildly per country. Some countries ban rainbow flags, others will happily sell alcohol to 16-year-olds. Plus, 99.99% of websites don't care about this and will be blocked by default if you block the "unknown" category. Grandma isn't going to call their ISP and ask to unblock pornography because the American knitting forum she's on doesn't know how to add TXT records.
Technical solutions don't solve political problems.
> The majority of the big ISPs would likely block the "over 18" category by default.
Existing UK legislation already requires them to do that.