I doubt everyone will still be carrying phones as we know them in a decade, so we might indeed be headed for a future where governments keep giant databases of biometric information. Works OK if you trust your government to handle that properly and not abuse it in the future. The real headache is crossing borders, where your details end up in the hands of a foreign state.

> so we might indeed be headed for a future where governments keep giant databases of biometric information

Don't want to wake you from that nice dream but that ship has sailed quite a while back, at least here in the EU.

Biometrics are usernames at best not passwords.

We are already in that future and have been for at least a decade. Passports contain biometrics which are in a central db too.

What? What to replace the phones with? And why whatever replaces them wouldn't be able to do the same things?