[What if Zoey injures her hand and it isn’t recognized?]
Yes, exactly. What if Zoey loses her hand where the scan of her palm print was “hashed” into digital form?
The other hand then?
What if Zoey has no hands or arms due to accident?
Forehead? Well, it would be much easier with, say, a QR code on the forehead.
Zoey can live without arms or hands. But Zoey probably needs her forehead to live.......
Zoey needs electricity, reliable internet, etc. to live, under that arrangement.
These ideas targeting urbanites are applied to the general population as a whole, and are exposed to completely impractical (to say nothing of the privacy issues they raise). Eliminating private vehicles and houses are part of that model; take what works/may be acceptable in unfree hives and apply it to the larger population.