It has actually gotten to the point where money rules and cannot be left out, just one thing I noticed is that if people with money can buy a second chance in life, they are willing to spend any amount they can to remain alive, watching resident evil the movie actually made it look as if it was a message for the future, back to the subject at hand there is no way you can stay without money, You need it to feed, shelter, or obtain health care. Even before we arrived at this civilization, there was trading via barter, exchanging one product for another. The reality is that money will continue to rule. Since they are already implementing a cashless strategy, I am confident that they will continue to improve money.