In an age where almost everyone has a Debit or Credit Card and that we are charging for more things (aero skysnack, sooner or later lavatory) on flights it seems obvious that we should be taking credit cards in flight. Going cashless has many benefits – not having to have cash on the plane, don’t have to ask for change, encourages people to spend more, etc, but some of airline cabin crew might get worried what happens if the card reader doesn’t work? Paying service will become easier 30,000 feet above sea level.