it is correct i think. bitcoin is an alternative currency. and blockchain based cryptocurrencies are a solid alternatives for nowadays financial systems. decentralized solutions for traditional banking system is going to rule the world in the future.
I think bitcoin is useful for a country that is experiencing a financial crisis, because it is more resistant to inflation due to the strengthening of the USD. But bitcoin cannot replace fiat money, only as an alternative currency. In the long term, it may continue to be developed by taking into account the needs or problems that exist in each country.