Comment by postdoc74

Maybe you don't live in any European country. 2FA with cell phone has become compulsory for most banking procedures in Spain, to the point that I can even no longer assist my parents without being present there with them. Even when there is a web app, this randomly forces the user to confirm identity via phone. Every day this extends to more and more official proceduress these days (e.g. loging to EU pages, regional government paperwork, access to hospital records and prescriptions...), and unfortunately it seems to me that the phone as official ID might be the future. In this scenario, projects like this one cannot be really useful without some standardization or layer that makes it acceptable by the government.