Cash money , coin and paper bills ,1$,2$, 5$, 10$, 20$, 50$ , 100$ , 1000$ etc , in Hand is important .
It means that any transaction that you have done or will do is private .
And That , is a fundamental Freedom given to all Human Beings .
If the Cash System of money is shut down by a Cashless System of money , debit , credit , card System then we can All be tracted , Hence loose our privacy . And identity .
I believe you are quite correct when saying that it is a fundamental freedom, one that should not be given away simply for convenience of digital transactions.
There are other even more insidious issues regarding digitization of currency.
Choose what you buy and choose what you sell - Digital not so...
Hard Cash not only allows you freedom to choose what you buy it also allows you freedom to choose what you sell.
At the moment most digital transactions requires a bank merchant facility to be "granted" to a seller.
At the moment the granting of the merchant facility is minimally conditioned.. terms and conditions etc... meaning that if you read an application for a merchant facility ( which I have done a few times in the past) you will find a list of "reasonable" conditions one must adhere to to be able to use that merchant facility. Thus the sales of goods is determined by those conditions. ( plus fees of up to about 4%+ depending on return risk)
Monopoly on what and who can sell
Now this is all well and good when cash transactions are out there competing with digital transactions BUT and it is a biggy BUT, when cash is no longer in circulation and is no longer competing with digital then the banking system has a monopoly on
what can or can not be sold and
who can or cannot sell.
If for example you fall foul of the banking system you can be back listed and never be able to sell anything again. Even today merchant facilities can be with held on the grounds of past bankruptcy or the banks considering you to be an undesirable seller for what ever reason. They can with hold merchant facilities more or less at their discretion.
Centralized Control of your money
Now consider if all merchant facilities are managed by a single centralized center.
Is this sort of power and money ( fees can go up too... you know) something you wish to give away simply for convenience?
If one takes a look at what is happening in China and how they are ramping up their systems of
"complete surveillance" and the popularity of certain mobile phone apps that allow payments to be made directly via mobile phone Blue tooth and recall that China has significant interests in population control it doesn't take much imagining to realize just how powerful the government is when it can control what you buy and what you sell by the flick of a digital switch.
It wouldn't be surprising if the
Chinese Yuan
Renminbi (hard currency) is fully digitized with the next few years. Their apparent ( according to media) need to control the population is so strong.
Market manipulation at it's finest would be the outcome and by guess who?