Here is a example of problem with banks : I have another girlfriend or a secret kid from another women that i am sending money to each month to support ... now some banks started to ask questions what are you doing with your money ... ? Why are you sending to x,y,z ...We each have our own problems in life...Questions banks started to ask are to personal.
Lol, that is not banks' fault if a customer is unfaithful to his spouse and has a secret family. Security procedures are a must and have to be followed properly. It would be worse if banks neglected it.
Actually banks aren't going to disappear or die, because people need them and I'm not talking about traditional banks exclusively. I'm also including crypto banks that are going to become very common as crypto currency becomes more popular and adopted worldwide. People need banks because they can invest their money there and earn interest from it or in another situations they can take a loan, if they are in financial need.
Crypto can't replace banks, but it can be integrated in banks and that is already happening.