No reason is necessary. It’s their property. Perhaps they don’t trust banks, or are buying something at auction or a vehicle that requires a cash payment (second hand septic pump truck, for example).
We don’t ask folks to declare other financial instruments (cashiers check, money orders) or jewelry on domestic flights. Cash is no different.
We don’t ask folks to declare other financial instruments (cashiers check, money orders) or jewelry on domestic flights. Cash is no different.