The USPS and state DMVs should also collaborate on the novel role of identity management. Right now if you lose your phone, half of your life disappears because Google won't even log you into the email address that contains every "lost my password" redirect without 2FA on a new device. This is a bad scene. We need boring old meatspace ways to establish, re-establish, and federate our identity as a real person. Something that demands that I wait in line, that I show them a utility bill or drivers' license, that I confirm with a retina scan or fingerprint printed out on a sheet of paper that nobody else has access to. Something that is only trackable in one direction, from which you can generate a new identity if one is compromised. This is so close to the functional role of the "Credit card number" that you may as well tack bank transfer verification on there.
The One Digital Identity Service To Rule Them All is always vulnerable to mass hacking. We need to connect it with something slower, something more private, and the interface to that slow identity needs to be something that already has a branch open in the middle of nowhere.