Time will indeed answer everything
Indeed time is the best answer. When we talk about paper money, I think we talk about cash particularly (paper and coins). Just open any book about history and observe that people has been using cash money for thousands years. And some people think that digital money or cryptocurrency will replace it in nearest future or during our lives? We all can dream that one day will conquer and explore space, everything will be digitalized. But it looks like that we will destroy each other faster than will have first space colony.
As we do live on era which is more advance or inevitable changes and innovation but it wont really be still enough for me to believe on that fiat would be eradicated anytime soon.
I do agree that as long government does exist then there's no way that fiat would be no more.Its true that its been used for thousand of years and we cant
really deny that it do really serve its purpose right on day to day transactions.
So its really hard to believe that it would really be replaced by online currencies.Consider that not all are really that techy on switching up completely
came from fiat which is really that hard to believe on.