That's interesting. Though one thing I will add is that IDs from any EU country is accepted by all other EU countries. I actually don't live in the EU country I am from, and before voting with my drivers license on local elections, I voted with my passport from my own country. Ah and another thing is that you can only vote for the local elections if you are not a citizen, even if you are from another EU country.

So in many ways, I think there is more interoperability between EU countries than between US states. Even with drivers licenses is very flexible. Where I am, you have to exchange it for a local drivers license within 15 years of moving (though you have 4 month to resgiter a car with plates from another country). In some cases even things like unemployment and disability pension continues being paid if you move countries.

As for the tracking, I agree with you for the latter part. People don't realize how much they are being tracked and exploited by mega corps. Anyway, even without a state or federal ID there, you still have to pay taxes and whatnot, so its not like the government has any less info about you. It just becomes an additional way to male life harder for low income people, because it raises the barrier of entry for support from the government.