I'm not sure if you're being facetious, but isn't that exactly what banks do?
You deposit money, banks go off and invest that money to do stuff, they give you a little interest as "pay back". I don't think it's even something you can opt-out of (maybe depending on what kind of account you open?).
It's the reason why bank runs are bad for the banks. They don't take your cash and keep it in a vault, they turn around and try to make more money with your money. They don't have enough liquidity to give everybody their money back all at the same time.
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I'm not sure if you're being facetious, but isn't that exactly what banks do?
You deposit money, banks go off and invest that money to do stuff, they give you a little interest as "pay back". I don't think it's even something you can opt-out of (maybe depending on what kind of account you open?).
It's the reason why bank runs are bad for the banks. They don't take your cash and keep it in a vault, they turn around and try to make more money with your money. They don't have enough liquidity to give everybody their money back all at the same time.