Honest. The government says so. It's all voluntary. (as is me carrying my bus pass, for example!).
ANOTHER thing that Labour would have kicked up Hell about when in opposition.
https://www.ukauthority.com/articles/office-for-digital-identities-and-attributes-goes-live/"We are living in very strange times, and they are likely to get a lot stranger before we bottom out"
Dr. Hunter S Thompson