True. I built a ZK age verification based on Polish digital identity https://x.com/maciejlotkowski/status/1899896737688436844, but I didn't find a business case for it at the time.

There's a EU initiative https://digital-strategy.ec.europa.eu/en/news/commission-mak.... The direction is generally good, but I'm not very positive about the implementation (as with everything comes from the govs).

More information here about how the implementation enforces a Google/Apple duopoly: https://github.com/eu-digital-identity-wallet/av-doc-technic...