It is said now China is a cashless society. Use of debit and credit cards in shops/stores, online pay bills, shopping online.
Money earned from the internet is known as digital/electronic money. People who earn money from the internet, they get paid money in electronic form by payment processors such as skrill, perfectmoney, alipay, paypal, bank-wire transfers because online workers are worldwide.
Last month, I got $20 from online surveys. The money was sent to my bank account via online payment processor. Now if I buy 2 shirts using debit cards at offline or online stores, there is no cash involved but I have 2 shirts.
Just like Bitcoin which does not have a physical presence, money/cash will not have physical presence in "cashless society/countries" where money becomes digital/numbers.
Bitcoin is a part of digital money. How is digital money is your country ??
In my country, credit cards are used quite often. When I come to the store with cash, they can't give me change... I get that a lot of times. Bitcoin may soon change all digital money.
Digital money can never replace fiat or credit cards. It will be not possible in the counties where the Internet is not used or used only by a low percentage of rich people.