I was talking with a friend of mine about cryptocurrencies and he said:
"Cryptocurrencies are anonymous?Nothing on the internet is anonymous.Having a bunch of dollars or euro in the pocket is the most anonymous way to store money.
"
Damn, now i think that he is right and fiat money are still way more convenient ,despite all the inflation,banks monopoly and control.
Your friend needs to expand the context.
First, how much fiat can he hold anonymously...can he hold $100,000 Euro in his pocket, anonymously? No.
Second, to get that anonymous fiat in his pocket he needs to go to a bank, withdraw the money and likely pay a fee. Oh, and when he withdraws that fiat his bank records that transaction (and that record probably has his name and account number!) Now, I can send you $100,000 euro (or a bit more than 100 Bitcoin) and while my wallet address and your wallet address will be public, you and I each are in sole control over who knows that wallet address is owned by either one of us.
Third, his fiat Euro is worth less tomorrow than it is to day, while our bitcoin is worth more tomorrow than it is today, simply because our money supply is finite.