This is great. I'm all for the convenience of paying with a card, and use it for 99% of my transactions, but cash has a place in a free society. Without it, the state and the banks have the means to shut off a person's participation in society. That's too much power going to unaccountable people. To say nothing of the surveillance a cashless society affords as well.
A cashless society is incompatible with a free society.
A cashless society is incompatible with a free society.