You clearly don't appreciate how far society has come because of government oversight. Now I will be the first to admit that I do think they overstep their boundaries many times, but money has to absolutely be central. It has to be backed by something, and the only thing big enough is the government of a country.
Would you trust any bank to issue currency? First, we would have dozens floating around out there, and then when we see how easy it is for a bank to fail like in 2007, which would erase whatever value you think you had (ie. Bear Stearns "dollars"), there would be no trust in the system. When there is no trust in the system, you can't do anything. You can't finance big projects, you don't have cheap access to capital, basically, you don't have economic growth.
Now at the same time, I'm not saying that a currency that couldn't be manipulated by a government would be a bad thing, but crypo currencies are certainly not it. In my opinion is vaporware, but obviously, when enough people jump on board the value can skyrocket. Using it will be a whole different ballgame though, and I"m sure this will be the death of it when they try and make it useful.
Given the choice of government control vs. no control, I prefer government control in a democratic society. Its the lesser of the two evils.
