The Govt. will now be 100% in control of everyone's financial information and can take your money on a whim for any reason they decide is legit... they can force taxes upon you if you don't comply to their mandates. Going to the digital dollar will be a monetary form of slavery as those in control can take or giveth as they so please.
It will happen and the foolish masses will embrace it because of a bit of convenience in their lives.