When i base on the past years i couldnt say that it will intruduced by economy class but when we base nowadays it is done because bitcoin plays a role now in economic growth so that bitcoin is not new now in the term of economy because it is now already intruduce by economic class and we also know that bitcoins give a great help on the economy of the country and also to the economical state of the world it increáses in its level because of bitcoin.