There are people that are now willing to use bitcoin and the problem is the business that are still not ready to accept bitcoin. There will no mass adoption that will happen if those merchants are still focusing to use traditional payment system than the current payment system. Our economy will boost more if we will use cryptocurrencies, there are also a lot of advantages that they can get from accepting bitcoin and using it. There are just not aware so it is the reason why for them fiat is still the best way to use.
So far, for instant and micropayment, fiat is more effective than cryptocurrency. In addition, it is usually constrained by the binding legal rules in the country, it is usually not allowed to make transactions with other currencies, other than the official currency in the country. After all, cryptocurrency is very volatile, the seller must think repeatedly to determine the initial capital and the benefits, it is quite difficult to determine when cryptocurrency prices are not stable. This problem can actually be solved by using a coin stable, but back again to the applicable rules and effectiveness.