The interesting component to this is what happens when the payment system $hits the bed. 3 weeks ago last friday and saturday in sydney the communications system underlying about 50% of all financial transactions (taxi card readers, many ATMs, many businesses) collapsed with the result that if you didn't have cash you couldn't make an exchange. How robust do people really think these systems are? I certainly have no…
I think the systems are pretty robust by any measure. I've never had a card reader in the Netherlands fail and had to pay with cash before. I have seen ATM's out of order a couple of times though. If the payment networks all go down, I imagine you'd also have trouble withdrawing cash from an ATM too. What's the alternative? Cash under your mattress for a rainy day? Do you think the value of cash would be stable enoug…
It doesn't even have to be a total credit card blackout, like it has happened a few times in Denmark in recent years. It can be minor fuckups, like your bank accidentally cancelling your card, or shutting it down due to something they consider fradulent activity.
I have seen at least 2 total payment blackouts in the past few years here in Denmark (a virtually cashless society, with very strict laws limiting cash use), have 12 credit cards at home from back when my bank thought I wanted a new one every month (with each sent card cancelling my current one, without notice, before I got the replacement), and friends have had their card cancelled without notice due to undescribed "potentially fradulent activity". It of course takes weeks to get a new one, and during this period you cannot even use an ATM.
All of these are simple errors that will happen again, and again, and again. They shouldn't leave you unable to make trades from your own wealth. You shouldn't rely on others to be able to manage what you own.
Cash isn't inconvenient with electronic cash counting registers. It's fast, simple, and it works regardless of external factors. Oh, and fewer people tracing your every step in this world is nice.