I agree that fiat currency can be okay for a temporary time. However, all things come to an end and I replaced by better means. therefore, we should embrace Bitcoin and understand that it is the future and continue working with it instead of against it.
Fiat money will be useful for a longer time and not just for a while. Remember, technological developments continue to grow year after year and so too banks continue to improve their performance to become more digital, and therefore fiat money will always be useful and will not be eliminated easily.