it could happen because along with the times and technology that will grow very rapidly but of course it needs a process and a long and difficult time of course
I think that fiat will not be able to completely disappear even in the distant future. Many people love to diversify their funds and they will still hold some of the money in the form of paper money.
Well mate nothing happened within days ever doing so we want to see people think as you think you will have to be patient. According to me people have taken a start to make money disappear as they use bitcoin more than fiat. Everything is able to do with digital money with ease and its future saviour as well so future of paper money is almost in dark.
You know Fiat also has a digital version. and it's also equally flexible and efficient to use. digital currency issued by banks or fiat will
be a competitor for crypto. and of course fiat will win because it is backed up by government rules.