I think it's the new era currency. The main problem is other people don't consider it as money. They are always hesitant about bitcoin's achievement for many years. Not all people are open-minded regarding this matter. They have to think more and more before they finally engaged in bitcoin's world of earning cryptocurrency. The fact that they always think of the risk might stop them from believing. In addition, they always expect for higher profits even if they haven't started yet. Furthermore, it's difficult for them to entrust the name of bitcoin in the society.