Criminals use it because it allows some degree of privacy. Where we went wrong in this world was targeting privacy instead of crime, that's where a lot of our freedom went. The key point, though, is that Bitcoin (and most other crypto) are fixed supply. They get harder to mine, and there will never be more of them. Bitcoin is capped at, I think, 21 million - if people decide it has value by being outside the Fed, those who own even a single Bitcoin will be the rare few.
Criminals use it because it allows some degree of privacy. Where we went wrong in this world was targeting privacy instead of crime, that's where a lot of our freedom went. The key point, though, is that Bitcoin (and most other crypto) are fixed supply. They get harder to mine, and there will never be more of them. Bitcoin is capped at, I think, 21 million - if people decide it has value by being outside the Fed, those who own even a single Bitcoin will be the rare few.