Had an epiphany today regarding the digital US Dollar, and the inevitable death of coinage.
I work in the gambling industry. Currently, there is a coin shortage in the US, and nickels are particularly hard to come by for businesses. When coinage is low, we have had to set redemption terminals to pay out cash, and print a voucher for the remaining change. A lot of these places are frequented by the elderly, who absolutely must have their change, so the place of business pays out of their register, and we end up having to come tally and pay stacks of sub $1 tickets.
My thought was when the Federal Reserve finally wants to roll out the digital Dollar, they will work on replacing coin first. Point of sale systems will offer an option at the end of a transaction: 1) Receive coins 2) Receive a printed voucher with a QR code.
The voucher would be scanned by an app (from your bank, or Paypal, Venmo, etc). The change would be deposited into your account.