I am very sure that one day, traditional Bank will begin to accept Bitcoin as a legit medium of exchange, people need to be given freedom to deposit their BTC directly just like the regular money. I believe that this will come to pass when the major world powers officially recognizes and adopts Bitcoin, this will make a foundation for banks to stand up and integrate it into their financial system. I believe in Bitcoin .
If you go to those countries that have bitcoin ATM machine you can deposit your Bitcoin there you can also use your credit card to purchase a Bitcoin in Bitcoin ATM machine, so banks does not deprive us not to hold our Bitcoin or not to bank our bitcoin very well it depends on what you have in mind... secondly there is under countries that their banking system do accept Bitcoin, let me use my country as a point of illustration, before bitcoin is being restricted in my country and place under regulation right now, it was once been transacting with the banking system of my country so I believe that if something like that should happen in my own country, that means there is other countries but their Banks transfer to a Bitcoin, and also there is some bank too by bitcoin is being restricted that is trading on Bitcoin without the concept of the government