Contrast that with banks that will have to capitulate to law enforcement with a subpoena but aren’t open to hackers, extorsionists, mafia, triad, yakuza, North Korea, Iran, etc.
It makes sense for some countries where the local currency keeps on losing its value and dollars are hard to get.
Even if it's made illegal all over the world the technology will continue to evolve and find its niche given the restrictions it might be under. It will probably take a few generations for it to happen. The idea of paper money took 100s of years to take hold so it's not out of the ordinary for cryptocurrency to take many more years to become common.
Once Bitcoin became an asset, people's greed kept it going and will continue to keep it alive and evolving.
The dream of crypto is have real platforms, not FAANG monopolies that can shut you off for no reason without recourse.