This is the part that worries me. The phrase "careful what you wish for" comes to mind.
I think the best solution is BTC as a store of value, and fiat to do all the other stuff. But of course if people refuse to hold fiat and just use it to pay bills, etc, then it will have little value.
The transition phase will be extremely turbulent.
Well who would you rather have control your money? The government or no one? I know what my answer to that is and I'm surprised by the amount of sheep minded people in here.
But in reality we need the US dollar because without it, how would anyone cash out their Bitcoin? If you had 100 Bitcoin, that might be worth 6 million USD, but it's only worth 100 Bitcoin. Imagine if there was nothing to cash out into? Then what? Imagine going to the grocery store and buying a pack of gum and having the cashier tell you the stores wallet address, letter by letter. That would suck wouldn't it?
That's why we need someone to constantly upgrade Bitcoin, and we can't do that if it's decentralized.
But then again, would you rather have the government control your money? Or have no one controlling it? Do you believe in government control? Maybe new world order? Or maybe you believe in total anarchy and chaos? The choice is yours..