Thanks to bitcoin we got a new option if you cant trust fiat anymore. But I can say it will be living for long as long there are places that cannot be reached by technology. It will be only us who lives in cities can do it for now.
Indeed mate.. bitcoin will still exist in the future and so as fiat, but fiat will not be out of the picture because everyone in the world uses it, bitcoin value is also depending on fiat. Without fiat, bitcoin will be worthless.