With the high cost living around the world and the nature of fiat fluctuating here and there, can Bitcoin do the unthinkable? Because fiat is no more valuable as it used to be. Bills rising above fiat and the various government around the world grappling to stabilize their economy yet it's not working. Should the government switch to Bitcoin to enable them stabilize the economy? If the various government around the world accept Bitcoin,it will give Fiat a break and it will bounce back.
El Salvador switched to Bitcoin(for a while and the USD was still accepted as a payment method) and what was the result? Bitcoin adoption failed in a small and underdeveloped country like El Salvador, why do you think it would succeed in bigger and more developed countries?
The average inflation in the Eurozone is around 3%. Why would the European countries adopt BTC only to fight low inflation rates? The USA won't adopt BTC as a legal tender because the US dollar is still the dominant global currency, which gives certain benefits to the US financial system. How do you imagine Bitcoin "crashing" the cost of living? Fiat won't be "given a break" even if BTC gets potentially adopted as a legal tender. Most countries will keep their fiat currencies for sure. Bitcoin is great the way it is.