Won’t happen because it will blow-up on the Democrats. BIGTIME!
We all know their prime base of supporters all supplement their WIC checks, welfare, SNAP cards, SSI disability and other payments with CASH earned under the table or in illegal activities.
Ban cash and the Dems will have more to fear from the Blood and the Crips than from Donald Trump.
I'm not sure it would play out that way. As usual, the law-abiding middle class would suffer. They'd have all their "money" in bank accounts, and every transaction would involve a fee. No interest would be paid on savings. Expenses such as insurance, utilities, loans, would be automatically deducted. There'd be a total record of their every move, based on transactions. Big gov would have the capacity to determine how much money could be allocated to specific categories of spending. Taxes would be automatically deducted and transferred.
Meanwhile, a barter system and silver and gold would be used for a lot of transactions, especially locally. An off-the-books economy would emerge, and everyone who took that path would be a criminal and could be jailed.
Without cash, there is no freedom left. What's most appalling is how much of our lives already operate that way. I doubt that folks under age 40 (or so) would even object. Cash will be phased out, as is happening now. When us old folks die off, that's when the transition can be completed.