Well, do we need it? Because, I can see that people use it only as an investment or as a money laundering tool. Black markets rebornt after the creation of bitcoin. I tried to convince someone to use it, but you know what? I couldn't. Why? Well, honest people don't afraid the central authority, in addition with the dishonest ones. Those who want something that is illegal, cannot do that. So they use bitcoin.
You are not entirely wrong to be honest because money laundering and investment purpose are the two most common uses of bitcoin currently and until the entire crypto industry looks at and make good use of the true purpose of bitcoin, it can be said that it is not really needed. Talking about the true purpose of bitcoin, it's meant to provide financial freedom but then again, if you ain't doing something illegal why should one need to hide his financial activities from the authorities. I know good intentions were behind the creation of bitcoin but bad people are using it for illegal things