I believe in the era of life, cryptocurrency is another era in the history of money, money has been given different names and it has been partnering with different avenues along the way from the ages. If a new system has more advantages over the old system, whether willingly or unwilling, old system will surely vanish. Money is almost reaching its permanent side where all the attached name will stay clear. Then money will do all its meant to do.
Cryptocurrency has come to stay and with time it shall be permanent specially now that we know that it exists.