I'm not sure how usefulness-when-traveling-internationally is relevant when the vast majority of the market for Uber, Lyft, etc will never board a plane more th

I'm not sure how usefulness-when-traveling-internationally is relevant when the vast majority of the market for Uber, Lyft, etc will never board a plane more than a handful of times in their lives... EDIT: typo ("irrelevant" -> "relevant")