That was going to be my next point, if someone pushed me for another one.

Exactly, this is why they want to kill cash and move everything to CBDC because it makes tracking/control much more efficient. 

kepford

I agree that it's not binary and that in some cases bills are tracked. However, no one is keeping track of every minor cash transaction, which they would have to do to know who has each bill.

What would even be the point of tracking bills at that level? It would be enormously expensive and serves no valuable purpose.

Undisciplined

bitcoin

Digital Euro to have built-in limitations, "It will never be as private as cash"

Private isn't a boolean. Cash is more private and harder to track than the credit card system. They do indeed track cash by the numbers. They also do other things to track cash. The state is not this all seeing eye with perfect knowledge but also they are evil and tracking and controlling everything they can.