Exactly. Besides, I think there are some places in this world that are not ready yet for this kind monetary system, especially in the third world countries. Also, it needs to be legalize first across the world which seems impossible for now. Just like what others say Bitcoin and other cryptocurrencies cannot replace fiat but rather could become an alternative monetary system. Moreover, I think Cryptocurrencies does not fit to become a common currency due to the fact that it is too volatile.
Well, if we are to look at the truth, there are so many countries belonging from third world countries that are really open for adoption of cryptocurrency. And we could not disregard the fact that there is a chance that these third world county might be the leading adopters of crypto, one main example of it is the presence of many indonesians and Filipinos here, which puts light to make their economy better with cryptocurrency.