I've heard many of my companions say the bitcoin is the greatest invention in the decade.. But I wonder why every country don't accept this as a legal currency in their general transactions?
Because they have their own policies and laws to follow in which they need to regulate it first before making the Bitcoin currency to be legal to use in their country. We all knows that Bitcoin could be use in illegal activities such as money laundering and terrorist funding so they want to regulate it first to ensure that Bitcoin will not be use in such illegal means. Anyway most of the countries are now supporting Bitcoin and very few are not supporting it.