[bhickey]

There are risks we should be concerned about, and risks we should not be concerned about. If you stuff money under your matress, the risk of losing it to a house fire or robbery are several orders of magnitude greater than losing it in a bank run.

Assuming your account is under the FDIC limit, how could you lose money on an insured account? Suppose there's a massive bank run and the Fed has to print oodles of cash to repay depositors. This leads to runaway inflation that occurs over a very short period. If you could have otherwise exchanged your cash on hand for a different currency, sure you would have lost money.

Compared with the actual risks of being unbanked, this is a hallucinatory concern.