It would be crazy. As for intuition, I actually thought it was counterintuitive as a kid that banks would safeguard your money for free. I had the naive intuition that banks were providing a service of keeping money safe and accessible via debit cards, so you should be paying them.
Of course my intuition is now totally different, especially after a college degree in economics, but there is some sort of intuition to be had in negative interest rates. I wonder if there are historical precedents -- maybe in the dark ages, or in historical places without moneylending/investment ecosystems.
I'm stating the obvious here, but they never did keep the money for free. They used deposits as leverage for loans and received 100% of the interest as payment for keeping that money. Even then, for the longest time a lot of banks didn't have a "free" tier account like they do today so they were double dipping so to say.
Negative interest rates aren't a new thing though. I'm more interested in where modern monetary theory will end up taking us and if that will make negative interest rates more common. It seems like a lot of people want to go in that direction. I don't know enough about it yet to know if that's good or bad.
Of course my intuition is now totally different, especially after a college degree in economics, but there is some sort of intuition to be had in negative interest rates. I wonder if there are historical precedents -- maybe in the dark ages, or in historical places without moneylending/investment ecosystems.