Cryptocurrency is a digital currency which is designed & expected to be operated, spent digitally, presently we have USD as the major value of it's distribution, most of us could transact daily after converting or cashing it out in our individual country's currency. USD is a fiat currency value.If crypto currency should mint out their own coin or not,it has possessed a fiat value, Do you think crypto can actually do away with fiat totally?
Well in my own opinion I don't think there's anyway we can do away with fiat, since crypto cannot be spent or used without being connected to a working Internet, this is one of the major hassle with using cryptocurrency no Internet no way to carry out transactions, unlike the fiat with is a physical money and can be used effectively for short distance transactions and it doesn't need an Internet connection, for now fiat will always be used faster medium of exchange, maybe if someday crypto can be used with the Internet then we can definitely do away with fiat.