Who gets in the way of paper money?
I use them often and I have doubts that they will ever cease to exist. Bitcoin is not a competitor to them. This is a completely different system and it does not need to be compared with fiat.
I totally agree to you. Even if the BTC is a competitor of the paper money still I am not sure it can ever defeat the paper money. Like it is easy to transfer BTC instead of the traditional bank transaction but the use of the paper money is sometimes totally different than that of the digital one. Secondly not all the people of the world are that smart to use digital currency.
I have seen many people around me who don't even prefer to use credit cards for shopping purposes as they have fear that somebody will hack their account and they prefer to use only paper money as they find it safe easy and most convenient way for shopping.
Credit card is created for convenience but due to some hacking reports it will cause panic to the people because they feel they are risking their reputation and credit line when hack. Well, in reality paper money is more demand than online transactions because those who transact online also uses paper money and as long as there are people in this world who are left behind, paper money will always remain.
I believe that it depends on your location. You can be saying that because that's what you can observe on the people around you but you definitely did not observe places like the USA where cashless society is starting. People are just using credit/debit cards to pay because it's much easier to use and more convenient. You don't have to count money, you don't have to carry it around, etc.
There will always be places like the provinces and third world places where paper money will always be more convenient to use since every store is accepting it while swipe (credit/debit cards) aren't always.