When people talk about the benefits of bitcoin over Fiat money, one of the biggest advantages is that bitcoin is more secure and the bank has not control over your money. Generally, people talk about the lack of 3rd party.
Give some examples of the problems with banks you have faced that there wouldn't be if cryptocurrencies existed that time.
The problems with bank is they are requiring their clients to comply first to give the important documents before making any transactions with them. Because once you are incomplete with it, they will not allow you to give your money. And aside from that, they are not aware about in cryptocurrency or they may heard it but they won't accept it as valid source of your income because they are demanding any certification from the company from which you are getting your resources.