The real threat however is they could simply ban the sale of any good or service by flip of a bit. Let alone the surveillance possibilities, everything you buy would be logged and could be used against you at a later date and not just by government officials but in any court of law or hacker. They could impose fees or penalties and there would be no escape from it. You could not simply pull your money out of the bank because there is no physical representation to hold.
Cash is freedom. Freedom to associate and support whom you want without trace. That is not a freedom we should ever give up lightly.
Because every true banker salivates at the thought of giving you a savings account that earns -1%.
Or business partner. Advertisement agency see that you have recently bought some personal item and they now show you ads for related items. Show you recently paid for a funeral and show you ads for 'saving their memory'. Shows you recently cream from a personal medical issue and show you ads for all related material... hope a friend isn't looking at the screen.
Also, you are playing against privacy because some corrupt people use cash, sounds a similar argument than prohibiting cryptography.
Larry Summers: "The fact that... in certain circles the 500 euro note is known as the “Bin Laden” confirms the arguments against it."
https://www.washingtonpost.com/news/wonk/wp/2016/02/16/its-t...
Or perhaps the more famous one... a lot of crime that hurts a lot of people is made so much easier by privacy. Since the government can already invade that privacy anyways (either illegally without penalty or legally by getting a court order), I just don't see a legal reason why you'd demand so much privacy from the government. If you haven't done anything wrong, you don't have any reason to hide.
The core problem with all of these is simply put: I do not need to justify why I have a freedom, you need to justify why I should lose it. And 'making crime easier' is not a valid justification.
If you believe entirely in the wholesomeness of the intermediary, it's great. But becoming dependent upon the intermediary makes you beholden to it.
Tax authorities found myriad ways to catch and prosecute tax-evaders in past, where cash transactions were the rule.
And that's fine. Don't use cash. But just because you don't see a reason to pay for a large purchase in cash doesn't mean other people don't.
The correct answer to someone who asks "Why should you be allowed to pay for something with cash?" is "Because I want to, and beyond that it's nobody's business."
Also, many Amish people don't use banks and pay for heavy farming equipment with stacks of cash.
The big fish have a bunch of "fake" companies, they pay little tax and are still very corrupt. And they system in such countries helps them. Yet for normal people, cash means freedom. No one can control or spy on what you do with your own cash money. People with higher education would never trade cash for convinient and bullshit bingo.
A few interesting concepts: Cost of carriage: a fistful of cash is easy to carry, but a truck full of benjamins is not.
Should it be possible to make recordless transactions? What kinds of transactions? Are there exceptions?
Who should profit from containers for cash? (Visa network fees, the cost of a leather wallet, the cost of computation for BitCoin, the bank)
I've run out of time to keep whiteboarding ideas before I catch my bus, but, to summarize, I sympathize with your desire to do good in the world but there are a lot of ways cash is used that you might consider as you work on this idea.
Freedom
I haven't heard of any definitive results in driving down corruption and the grey market either though.
Corruption and tax evasion are a big problem in Austria (as presumably in most parts of the world), and cash payments make them so much easier.
I just don't see a legal reason why I'd want to pay for a large purchase in cash. Almost all large purchases require some kind of paper trail anyway, so it's not like giving up cash means giving up your anonymity.
Am I missing something obvious?