Just by using your phone, you could purchase almost anything. No need to withdraw on an atm. No more heavy coins on your pocket. Paying bills, and purchasing tickets without standing on a line. Very convenient and less time consuming. I know we're already using credit cards right now, but using a single currency like bitcoin world wide could really help on transaction, having less error than the normal and faster transfer and of course the security. Do you guys think this could happen in the future of bitcoin?
This is pretty much happening all over the globe already at this stage.
However, it does have some negative implications, especially when the cashless society is mainly integrated with the traditional banking system. All of your transactions are viewable to a third party, and they can track exactly what you spend on. Without cash, your account can be frozen, payments denied to a merchant because the central bank does not support its purposes, etc. It essentially takes away the fungibility and anonymity of cash, which are two basic functions of currency.
Bitcoin can definitely help avoid all of this, but mass adoption still seem relatively far away. I stay optimistic though.