I was scared for the future of paper money, because if the crytocurrencies not stopped to become famous in the whole world. Sooner of later paper money has been vanish, but I don't expect that it happen due paper money was symbolizing each country.
My prediction in the future is paper money will still stay in the ciruclation, more options to transact is possible
but paper money is the most convenient and it might lessen the demand but will not vanish.