To fight against the control of USD thus create an anchor for people all around the global, or to make transactions apparent in cyber world, Bitcoin was coined by Satoshi(the second one is more valid).
Will the day come when everyone uses Bitcoin in daily payment(supposing new tech is applied to avoid high gas fee) and thus fiat gets abandoned? Or it won't because the amount of Bitcoin is set and all Bitcin is practically manipulated by capitalists...
Obviously , it's nearly impossible for Bitcoin to realize permant and global circulation due to its high price and scarcity, which renders it harder to take the place of fiat but it sounds that ETH is likely to be an anchor and a tool for daily use alike, surpassing BTC is feasible.
They say, if a country is at war or in upheaval, buying Bitcoin is not wise for its high volatility and USD is a better choice.
How do you think

I don't believe that Bitcoin/Etherum digital currency can replace fiat. even if the country is at war, this is also not a wise idea. those of us who are not left behind in crypto technology can adapt quickly, but what about people who are not familiar with crypto technology and even some whose lives have not been touched by technology. this will also be a big problem, so I have a hard time believing fiat will be replaced by crypto digital currencies.