Leveraging a central authority to issue standardised, signed tokens to all citizens, then letting the public and private sectors make use of it: that’s something I could get behind!
The government steps in solely to manage token issuance. New use cases appear as emergent properties. DebbiesDrawings.com lets you use your tokens to sign eCards. HMRC.gov.uk lets you use then to sign tax returns. RonsRentals.co.uk lets you use it to sign a new lease.
In a pessimistic world, without watching the hyenas closely we end up with Capita or Accenture or Concentrica or Syntegrico (I made the last two up) syphoning off £8bn to create proprietary tokens that can only be used with sanctioned government JavaBeans webcrap. It would also be fundamentally flawed and won’t launch until 2037.
With care, something really cool could happen.