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.From my personal experiense 99% of the people refuse to believe in bitcoin and refuse to adopt it in their daily life.Any opinions?
Most people still believes on fiat money, because it still is the best way for transaction. Bitcoin offers alternative payment system that companies or stores can use for their customer's convenience.
People who refuse to believe in bitcoin's potential are people who have less or no knowledge about bitcoin. They got used to conventional way of transactions and feel more safe about that. Just like you said "Nothing on the internet is anonymous" meaning some people have the same mentality as yours so they choose not to trust bitcoin.