Why not just disallow free porn? Require everything available in the UK to be paid, for at least $1, via credit card. This will exclude children most simply.
This comment was dead. I vouched for it as the comment has substance and this is HN - please don't downvote just because you disagree.
I used to work for a company that facilitated selling adult content on phones in the UK (why someone would pay a few quid for a 320x240 video I don't know). Even to access free samples you had to pass age verification, which required you to have a contract phone (not prepay).
In regards to credit cards this may work in the US, but in the UK (and the rest of Europe) a lot of people only have debit cards, not credit cards. These are accessible to minors, apparently as young as 8.
I used to work for a company that facilitated selling adult content on phones in the UK (why someone would pay a few quid for a 320x240 video I don't know). Even to access free samples you had to pass age verification, which required you to have a contract phone (not prepay).
In regards to credit cards this may work in the US, but in the UK (and the rest of Europe) a lot of people only have debit cards, not credit cards. These are accessible to minors, apparently as young as 8.
https://osper.com/