Satoshi created bitcoin to replace the outdated monetary system of fiat but it will never achieve that goal because the government will never let that happen. Plus the volatility of bitcoin surely no one dares to use such a volatile asset in daily life, bitcoin is more suitable as an investment than as a currency.
I disagree with you, because Satoshi never created Bitcoin to replace fiat money than to reduced unemployment and eliminate delay in people transaction. I don't think, Bitcoin will be future of money, because Bitcoin is a decentralized currency that is not control by the government like the way government control fiat money in the time of inflation and deflation which their major power to do all those things is central bank. Bitcoin will remain decentralized currency to fulfill the purpose it was created by Satoshi for the whole world to enjoy.
Bitcoin will definitely affect the structure of currency with a decentralized attitude. Maybe its essence is not currency or technology, but a profit-seeking way to tell people that decentralization is the correct direction of the future process. Now It seems that many people will not believe it, but with the gradual popularization of the encryption industry and the gradual popularization of Bitcoin, it is more trustworthy and safe for people to accept decentralized operations. Fairness and transparency are rigid requirements. .