At some point crypto is the result of development, let me explain: There was non denectralized currency, was it? So human decided to create something like that. Was our privacy protected online while paying? No, so it was an issue. What we got in result? One man or group of people, satoshi, decided to create coin which would be decentralized and anonymous, he learnt coding and a lot, created a cryptocurrency. This action requires brain...
Decentralized is good from crypto but when you said privacy is not protected then its wrong. We could choose what we want in crypto without pressure from other so this make freedom is kept well in crypto. The problem only how if all people want to make their ow crypto? Its big problem.