The world is gradually evolving, and it will continue to evolve but its just a matter of time. Bitcoin could be use as a means of payment of online services currently. Previously, in my country, getting service online was very difficult because paypal isn't working, but now it is more easier with bitcoin. The only problem is that not all shops accept bitcoin and to shop using bitcoin, you have to get means of payment that encourage use of bitcoin. But we cant completely move from cash to cashless. There will definitely be some cash forms of payments in the system due to fear of hacking.