There are dude. Virtual or crypto payment system has been popping up already. Ive seen projects conducting ICOs that pertains to crypto-payment platforms. Crypto-based online market that would be rivals of Amazon and ebay and worst there are even retail stores accepting cryptocurrencies as payment in some countries.
Real money will still be the same but it will soon be merged with digital money and be more profitable due to more opportunities to come, since its being used for bigger investments of crypto. However the acceptance of crypto will eliminate the cash type basis, because more people will now use and prefer digitized form of payment and they're confident to use it due to convenient way.