Everyone becomes a "banker" with a large collateralizable asset. You are assuming that it will be denominated in Federal Reserve fiat $ as an ADDITION to thr money supply. If US takes its gold reserves, revalues price of gold up to $10K, then divides total holdings amongst citizen "holding accounts", the value of gold doesn't suddenly go to zero.
Everyone becomes a "banker" with a large collateralizable asset. You are assuming that it will be denominated in Federal Reserve fiat $ as an ADDITION to thr money supply. If US takes its gold reserves, revalues price of gold up to $10K, then divides total holdings amongst citizen "holding accounts", the value of gold doesn't suddenly go to zero.