This is changing in Australia somewhat, as the country has enacted age verification laws for under-16s iirc for logged-in users:

https://www.abc.net.au/news/2025-07-11/age-verification-sear... | https://archive.is/4vbKX

Similar age verification standards are being proposed in the EU:

https://www.reuters.com/sustainability/boards-policy-regulat... | https://archive.is/LjfI2

UK folks apparently are using VPNs to circumvent age checks:

https://www.engadget.com/cybersecurity/people-in-the-uk-now-... | https://archive.is/WVNwM

Social media sites and app stores are bristling at being legally induced to create age check mechanisms by local governments:

https://www.bloomberg.com/news/articles/2025-07-25/meta-clas... | https://archive.is/7vqL6