Whether or not the electronic money through the future is easy is a difficult question. Firstly, in terms of economic integration, this is very difficult now because each country has its own face value and money, it is difficult to synchronize, another difficulty is that the legal is unclear because each country has one private law. Secondly, the political, military, and information technology are uneven, leading to access to electronic money is not virtual reality. So how to solve this problem?
the main problem is it forces the slavery system model again when supply is mined, there is a simulation called huntercoin youtube it, you can see the biggest threat is diminishing supply, with bitcoin it is dust, lost passwords. Even if people would never lose their keys, since it is all mined from nature, they will end killing each other, google "man robbed for bitcoin" and just read some of the headlines.