Being able to skirt around geolocation restrictions, content blocks and web filters using a VPN is one of the primary uses of these services as well as providing privacy on the web.
It's highly unlikely that all sites offering adult content will comply with the so-called UK
*** cam sites block. It seems implausible, given that VPNs are already being used by terrorists and paedophiles and yet aren't being targeted, that the *** block will be any different.
Online it's arguable that the process is more anonymous, but you will need to prove your age by uploading some form of identi***ation. AgeID will be an online system and visitors to adult websites will need to verify their age by uploading proof that they are old enough.
The question still remains, however, about how secure uploading an image of your passport or driving licence actually is. An easy question that allows you to heat things up by ***ualizing the conversation afterwards.