In a few country, you can use bitcoin as currency not just transafer. Its true that many people still not able to use bitcoin in many country but i do believe that in near future, we will able to use bitcoin in many offline merchant and online merchant
In developed countries, bitcoin is considered a digital currency so many accept it. Not only for paying online transactions, they also receive offline transactions. While in developing countries there are more who refuse with a common reason: protecting their citizens from losses. but I am optimistic, bitcoin will become the world currency, someday.