If it were the case that the main currency of every country in the world is Bitcoin. Then how do you think the world economy would be run? Because when Bitcoin becomes the main currency, the American dollar and other countries will have Bitcoin as their main currency. The local currency of that country will be associated with it as the second currency. In this case, how would Bitcoin be used or how can it play a good role in the world economy?
Volatility will be the order of the day and government policies and regulations can't control it so it's going to be a hard nut to crack honestly. Yeah we are optimistic to see that happen but looking at the rate at which the price tend to change and affect alot of things I think it's not a good idea to have Bitcoin single handedly play the role of the main currency of the country or the world.
It's something new may try to play more save by having bitcoin as the major portfolio we are holding before any other alternative asset or currency consideration, in so doing, we may later include exchanging a portion of bitcoin into fiat for the smooth runnings of the economy before bitcoin acceptance for payment becomes harmonized, thing would rather be more better than ever before with the role bitcoin can play in the general and individual financial economy.