Yes.
But I think that PMs will be the coin of the realm for the underground economy if cash is banned. This will put incredible demand for PMs and who knows if this could collapse the dollar. I guess it depends how big is the underground economy.
I’ve pointed this out before, but the Mint/Treasury has coined more than enough gold and silver coinage to operate a PM based economy based on the ratios to what existed before 1933.
It’s out there, in circulation but at super low velocity because of convenience and because it’s holding value. You have to “opt in” to the debt based system, there’s always been alternatives and after 1986, a glaring one.