They are already kinda banned. Once payments are above a certain amount contact information must be collected as far as I know. No bank transactions are anony

They are already kinda banned. Once payments are above a certain amount contact information must be collected as far as I know. No bank transactions are anonymous. Smaller money payments are anonymous, but mainly due to physical limitations creating enough hassle so that it can't be abused too much (without also braking the law). As well as historic reasons. But did you ever consider that every bank note has a unique id which is tracked by banks when you pay in money (and I think) retrieve it? Furthermore the EU as since basically it's creation slowly working on de-anonymizing payments wit the purpose of fighting crime and money laundering. It's pretty much a straight forward continuation of pre-bitcoin invention policies.