Cash is already somewhat traceable (what did you think it was numbered for?) and it's illegal to buy some things anonymously, so it's really strange that you believe these things.
There is no regulatory tracking of bank note number to who withdraws it. None. An incredible and incredibly pointless mess. ATMs do read them however,for the just-in-case scenario.
In bank robbery stories, sure "A million in used notes" sounds nice, but that's because a net would have been thrown down, or specific attention drawn to a serial, but in most cases, no. The regulatory burden would be far too surreal.