A long, long time ago (within the past ten years), I had to verify my age with a site. They didn't ask for my ID, or my facial scan, but instead asked for my credit card number. They issued a refund to the card of a few cents, and I had to tell them (within 24hr) how much the refund was for, after which point they'd issue a charge to claw it back. They made it clear that debit and gift cards would not be accepted, it <i>must</i> be a credit card. So I grabbed my Visa card, punched in the numbers, checked my banking app to see the +$0.24 refund, entered the value, got validated, and had another -$0.24 charge to claw it back.<p>Voila, I was verified as an adult, because I could prove I had a credit card.<p>The whole point of mandating facial recognition or ID checks isn't to make sure you're an adult, but to keep records of who is consuming those services and tie their identities back to specific profiles. Providers can swear up and down they don't retain that information, but they often use third-parties who may or may not abide by those same requests, especially if the Gov comes knocking with a secret warrant or subpoena.<p>Biometric validation is surveillance, plain and simple.