There will change a lot and at the end of this trip the paper cash will definitely vanish.I have no doubts about that if I'm truthful simply because things are going to get electronic now a days.
Things has already changed and everything has already become electronic, even making of payments, buying and selling and the rest of them, but that deosn't mean that cash will go extinct. Some.of you here are very stupid and don’t even think before saying stuffs like this. You have the understanding that whenever cash is mentioned it means dollars, no, cash means the physical form of any money, be it dollar, euros, pounds, even gold is cash, and can have electronic form…. An example of electronic form of Gold is run by Bitgold.
You buy gold and use their mobile app to store and use it online, you can also order it physically. So if Bitcoin gets physical form, it is also cash. This world is going no where without cash, and everything going digital will increase risks of getting hacked and scammed.