Paper money is relevant in the future through bitcoin transaction.
I dont think paper money will be remove in the future as this is
being used already. However, lets admit thats its really helpful
to all bitcoin users.
What you said is correct, even in bitcoin they are printing in paper for more security purpose so in this sense how paper money will removed, paper money is more secure. Ya but in future it will become like bitcoin paper money instead of fiat currency paper money