.
But every informatic system can be hacked, and what does it mean it all your money, and your proprety will be virtualize? A Mess. So careful with the future.
Sources:
https://www.nytimes.com/interactive/2017/11/14/business/dealbook/cashless-economy.html
http://theconversation.com/cash-is-falling-out-of-fashion-will-it-disappear-forever-79316
http://www.bbc.com/future/story/20150724-the-truth-about-the-death-of-cash