Bitcoin had design goals in mind to avoid certain downsides of centralized currencies. The cryptocurrency space however lives inside the broader economy and questions about what money is and the regulations around it don't go away just because a specific cryptocurrency thought about some of these aspects in it's design. Even if bitcoin were to solve everyone's problems as some maximalists would claim how do we even implement this? Considering much of the world doesn't have holdings in bitcoin what are we to do? Similarly what do we do about people who don't have the infrastructure to run full nodes? What about dealing with interference with using the cryptocurrency imposed by external actors?
There's good reasons why people discuss these ideas, bitcoin, much like anything else is just part of the direction things can go in and it doesn't exist in isolation from the rest of the world.
There's good reasons why people discuss these ideas, bitcoin, much like anything else is just part of the direction things can go in and it doesn't exist in isolation from the rest of the world.