Re: Stop trying to "protect children"
i.e. from porn, which for some reason they try to pretend minors never had access to before the internet and that any enforcement measures could actually stop minors from viewing it. "Adults only" should only ever be a content warning to push away viewers who don't want to see it.
I was thinking more of a task based age verification scheme. eg on Porntube the verification page could display a tasteful picture requiring the browser to accurately label the (intimate) anatomical parts shown. :)
I suspect there are logical or linguistic tasks that would challenge an under 14 yo male (or 12 yo female) but between 18 yo and those ages I think its nigh impossible. Hypothetical moral or ethical questions posed to limit access to social media accounts would exclude those media enterprises' owners let alone most of their subscribers (of any age.)
Australia is going through this now and the idea of foreign internet sites capturing images etc for age verification leaves a lot of people cold. Not surprising after the theft of so much private data from AU organisation in the last year or so.
I can vaguely see that trusted third party age attestation might work.
You roll up to Porntube and the verification page requires you to create an identity which then generates a token encoding your identity, the domain, age requirements etc needing attestation, date/time etc. eg (nemo@example.com, porntube.su, >=18, 20240604)
You then take this token to verify-age.gov.au site which on your authenticating has your (gov.au) authoritative dob and can verify porntube token age requirement, add its domain of authority, date/time, expiry etc and sign it.
This signed token can then be presented to porntube and verified to allow access now and in future until the attestation's expiry.
This should have a modicum of privacy but the verify-age.gov.au site would be able to log your more prurient browsing interests and potentially identify you from subpoenaed porntube logs. :)
The obvious weakness is the access token could be copied and (unwisely) passed around.