No because if there an bitcoin bank then how about our bitcoin wallets? that we use to stock our bitcoin from earnings and if there an bitcoin bank i will not totatly deposit my bitcoin if there an fee's like bitcoin wallet it much more better to use bitcoin wallets than bank 
just saying.
Lol I think no one will tell you to leave your wallet and should use bitcoin bank, I think although bitcoin bank runs even though it will not give impact whatsoever, because this will be the same as the wallet, except that they have access to and control of bitcoin you save, but you could benefit from interest just saying.Well exactly. You either have an offchain transaction going on where every bank will want to keep them a secret or you and the bank will both just have access to your bitcoins. Either way it's stupid and pointless. It's redundant and illogical. It's like saying "I gave access to my email to my librarian because it just seemed right" . There's absolutely no need for it!