There are cryptographic tools (zero-knowledge proofs, for example) that can provide anonymous attestations for a user's age. The problem is that the infrastructure to support it isn't provided by the same government that's requiring it to exist.
And even if the private sector innovated here, there's no approval from the government to accept math nerd solutions as legally valid.
Which means you basically have to scan and upload your photo ID to these websites, or use a payment card, or something else that will stand up in court.
And even if the private sector innovated here, there's no approval from the government to accept math nerd solutions as legally valid.
Which means you basically have to scan and upload your photo ID to these websites, or use a payment card, or something else that will stand up in court.