I think bitcoin is a world currency not a private currency and because he does not hold by the government and does not have tax.. and i am agreed for this currency. so all people are wrong tell us bitcoin is a private currency.
From a legal point of view, Bitcoin cannot be considered a private currency because a patent for the invention of Bitcoin is not registered for any private individual.
However, Bitcoin can rightly be called a private currency in everyday conversations from the point of view that it will be used primarily by individuals. In my opinion, states and legal entities will not use bitcoin widely due to its high level of volatility.