Once that is derisked, the immediate question for the State becomes phasing out physical legacy identity documents and migrating that leg to biometric registration with your personal device (partnered with manufacturer sensors) but also from a very young age (maybe even starting on day of birth). Biometrics can aggregate over time to become stronger, so I could see doctors appointments and flights being used to add additional scans, the way you phone lets you add additional fingerprints and additional reads of existing biometrics. The goal for the state is knowing who is who and having a central database in order to unify the state across it's distributed and fragmented mechanisms. In the private sector, that same unification will happen but opaquely using whatever is metadata revealed by the #DigitalIdentity technology chosen, to the extent that a universal fingerprint for a give persn will be converged on in time. That's my current sense.