Any sufficiently AI would be under the control of some trustworthy entity. Preferably one. It's too dangerous otherwise.

(I don't agree with this, but it's a common perspective amongst this crowd).

And using biometrics is itself a hack to circumvent the vagaries of government ID systems. So you'd be hacking around a hack.

It makes me think at some point we'll be back to inventing government-issued IDs. Or um using the ones we have.