How do you think banks make money, how does a bank make money to pay its employees and business operational?
Does the bank rely solely on interest on loans from banks?
They get income from many ways. Fees, monthly charge, and also they use their customers money then lend it, they take their customers money. But bitcoin is different, users only need to pay transactions fee, and their amount of bitcoin will not decrease because of monthly administration fee.
Absolutely banks get profits from many ways and I think that the major income derives from banks collect interest on loans and interest payments from the debt securities they own, and pay interest on deposits, CDs, and short-term borrowings. Obviously it depends on the number of people ( supply)in order that they can operate or survive the work safely. Although compare to digital currency, the fee everyone has to pay for bank is quite bigger than crypto. However, people like to use a tool which is much safer, they tend to support bank.