There is no future for paper money and there is future for digital money like Bitcoin i think paper money is outdated system for acomomic system for this centuries and bitcoin is big chance for to change this aconomic system and i know it will change and we will only use bitcoin in the future.
I don't agree anyhow the banknotes it has a very strong foundation in real life because they were created by the government and of course there are legal regulations inside it.