Not a terrible idea, but you’d have to have some security.
Say it generates a changing QR code that must be scanned by an authorised party within a few seconds, and that party just gets the relevant info they’re allowed to access. e.g. for buying alcohol a photo and age (or even if just over 18 or whatever the item needed) and nothing else because it’s not relevant at all. Nothing stored on the phone except for an ID number.
There’s no need for it to display anything else.
Let us lock it with a fingerprint like a banking app.
Not a terrible idea, but you’d have to have some security.
Say it generates a changing QR code that must be scanned by an authorised party within a few seconds, and that party just gets the relevant info they’re allowed to access. e.g. for buying alcohol a photo and age (or even if just over 18 or whatever the item needed) and nothing else because it’s not relevant at all. Nothing stored on the phone except for an ID number.
There’s no need for it to display anything else.
Let us lock it with a fingerprint like a banking app.