“This means that people without a form of photo ID will likely need to take steps to obtain one to access age-restricted services.”
Ofcom admits face scanning can miss a kid’s age by years. So the fallback is a passport. About 150,000 16 and 17 year olds don’t have one, and they are legally allowed on these platforms. The regulator’s answer is to go get papers. That is how ID for the internet becomes normal.