It is upto which country you are staying, because each and every country have their own law for bitcoins, in my country still bitcoin is not legal or illegal, so we dont give any information. or we say it as short term profit.
i think still no country have any law about bitcion, they have not yet given any official statement about bitcio, may be bitcoin is under their discussion but still they have not given any statement about bitcoin . therefore in most of the states people are still free to use bitcoin according to their own wishes.