That is the point, no? I don't think anything is wrong necessarily with our current money system however people have preferences and they might prefer using fiat or crypto. The only thing I can think of that crypto can 'fix' is people's economic situation. Here is me hoping that crypto makes all of us richer.
Having a preference is not the issue, the issue is, that there's something wrong with our money system. The system is built so the government owns and country you. Then there is the issue of too much inflation. Maybe you may not experience inflation in your country and devaluation of your currency, but in my country, the currency keeps getting worse yearly, so even if we can't totally avoid inflation, with Bitcoin, your savings would still have value.
That being said, I don't agree Bitcoin can fix our money problem. Bitcoin is not legal tender, so it can only be an alternative currency so people who believe there's is something wrong with fiat can use it and people who don't have issues with it not use it.