Payment companies and stores save money by pushing people
to pay using digital systems, but if
we don't maintain the use of cash, we will all lose.
Long before there was any system for digital payments, a think tank
predicted that those systems would be
every repressive regime's dream.
The main reason I insist on paying only cash to buy products is not
my own privacy -- though I appreciate that too -- but rather to
defend the privacy of the heroic journalists
and their
heroic sources, the whistleblowers.
We all depend on them, for our freedom.
Please support the defense of cash. When you leave the house,
bring a reasonable amount with you for the day's purchases,
and use the cash at least sometimes.
If at a store you don't have enough cash, that doesn't mean you have
to pay with a card or give up. You can go to an ATM, get cash, then
return to the store. With that method, the bank learns only where you
were when you got the cash, and the store doesn't learn anything about
you.
Beware of the defeatists who predict that surveillance is (or will
become) so complete that there is no use even trying for privacy.
They get a perverse pleasure from urging people to despair and give
up. You can tell them, "On something important, only fools give up
without a fight."