Ironic considering the UK does not have any requirement to have an ID. Passports and Driving Licences (sic) are not mandatory. The effort to create ID cards was abandoned ~20 years ago.

Will people really be expected to get a non-driving Driving Licence to access porn?

It seems governments everywhere are abdicating their primary responsibility as a single point of personal identification, then outsourcing solutions to the financial sector (banks, crypto exchanges, etc.) and dodgy 3rd party age-checking agencies.