I suspect you haven’t worked with governments before.
Just because something is technically possible, it’s no guarantee that it will be the chosen mechanism for something. More likely the contract will be awarded to either the lowest possible bidder, or to a friend of a friend. Cronyism is depressingly common at all levels.
Not sure why you are under that impression. I never discussed the potential chosen mechanism.
I stated that it is possible and that it is already implemented into the id card of many eu citizens.