The idea that the bank is obligated to balance the scales of lending and borrowing seems odd to me as well. I keep a bank account for myself personally of course, and if some day I needed to take a big loan out to start a business I wouldn't consider my decades of having a checking account with the bank as obligating them to extend me the loan regardless of the credit risk they think I am. I voluntarily signed up for a bank account because it's good for me, and if there's nothing in the contract about them having to make me a loan in the future I shouldn't expect one and neither should they.