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

It's very likely that most people in the future will get to use cryptos such as bitcoin and eth for daily basis or transactions if legal tender allows so. But I don't think that the fiat will be abandoned in the near future because even if the government allows its citizens to use the bitcoin or eth freely and legalize it, still fiat are gonna be their and the authorities will continously make it because it is backed and it has a real value. There are still citizens who favors fiat to trade or buy something physically like the commodities while also using btc as form of payment online.