The core concept to remember I think is that there are two ways to pay for things: * Ways that involve cash or cash equivalents * Ways where a purchase requires the permission of someone else Just think of the word authorization, which is a required element of essentially all non-cash transactions. It has the word authority embedded right in it. If you're OK with that concept, you are necessarily OK with the idea tha…
I can go weeks without touching cash these days. Nonetheless, I find the idea that I could be prevented from making a person-to-person financial transaction for even a modest amount without a paper trail pretty unsettling.
Luckily I can still go weeks without touching my EC card these days.