The same way we do with cash. When you put your cryptos in a bank they will lend out some portion of it and in return you'll be paid out some interest rate. The

The same way we do with cash. When you put your cryptos in a bank they will lend out some portion of it and in return you'll be paid out some interest rate. The incentive to storing your crypto in a bank will be that you receive that interest rate, potentially that its insured, and that its secured. Perhaps the interest rates will need to be higher to encourage someone to deposit their cryptocurrency in a bank, its hard to say.