Yes I once used to imagine a world of cryptocurrency where you are king of your own money and no one really controls the economy. But then came the horrible idea of transaction fees which really halted my dream as I have to pay now a cut from my money to bear expenses of transferring it. 1%? Thats fine I can bear it but 10-15%?? wasn't paying tax better? But that's fine as I can send money quite quickly within seconds. But minutes? or even hours? Moreover the so called decentralize world is centralized by a handful of miners. So cryptocurrency world is still a very long dream until we find a good coin that can be used for mass adoption.