If it's something made by the government or by banks then you should definitly know that it won't be private and they will have control of everything just like the banks right , nothing much will change .
and for what comes to the Paper money I don't think it will dissapaear , maybe on some countries yes but worldwide ?definitly not because some countries don't even use Credit cards for their transactions so ... yep
Paper money or what other called fiat is actually a form of currency that is serve a good form on transaction. But in terms of innovation and development for the future having crypto-currency or virtual money is the best thing to have becauae it can make transaction faster and reliable for business transactions. It could also open up opportunities for people to earn and to make profit for future and adaptation of changes of the economy.