We have this in The Netherlands but it hasn't picked up yet. It's promising though: https://privacybydesign.foundation/irma-explanation/

The system is attribute based and requires an 'authority' to give you the attribute. After that the attribute lives on your phone and you can give it out to organisations or businesses asking for....:

  - your name
  - whether you are >= 18
  - your address
  - etc.

What's great about it is:

  - you can give out minimal information
  - no 3rd party/intermediary required after you've received an attribute