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There are still power and internet outages possible, climate disasters aren't going to only hit those who deserve it.
Sure, nothing is lower tech than locked box with a slot in it, except maybe accepting IOUs, but most businesses that handle cash today still go down if power goes out, cell service is a little more reliable though.
I'm not sure how the technology works there, but here, very few businesses even have the old manual card machine that uses carbon copies. I've learned to keep a small amount of cash. Plus it's hot and sticky here, so the squatter that hangs out at the corner shop a few miles away -- seldom asks for anything, but if I ask them, they will request a cold soda and occasionally a hot dog
I've never even seen a manual card reader machine. How does it know if a card is declined?
It doesn't. But the bank fees, merchant fees make it cost prohibitive to overdraft, not to mention criminal charges, jail, and fines if you don't correct the issue immediately.
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Crazy that this technology still exists. Half my credit cards don't even have raised numbers.
We're seeing less of them here. I think as climate catastrophe increases, they may come back.