It is not uncommon among cabdrivers to be living day-to-day, financially. And a very large number of drivers rent their cabs daily: that means they need to pay the cab owner a fixed amount, in cash, when they go out for their 12-hour shift. So, it's not at all surprising to me that many drivers (1)are not at all crazy about receiving deferred payment, and (2)don't give much thought to the long-term impact/benefit of accepting charge cards.