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.