Bitcoin was launched in 2007. It's 10 years and still no country has approved Bitcoin ?? 
and in 2018, 2nd richest man "Warren Buffet" said "bitcoin will end up badly"
and in 2018, 2nd richest man "Warren Buffet" said "bitcoin will end up badly"
A lot of countries have appoved bitcoins and even allowed the trade of other cryptocurrencies. I believe that Japan has been crowned the only country to ever have loved bitcoin so much, they support it with their entire countru and government backing it up. Might even be a possible replacement for Yen.