Is it typical in the US to carry cash in the tens of thousands of dollars? While I understand some people are unbanked, surely it is possible to open a bank account if you have tens of thousands to deposit. Leaving aside whether it is legal to seize the money or whether it is ethical to do so, is there a good reason why you would choose to walk around with, say, $100,000 in cash instead of a bank cheque or a a plastic card?