What's been happening in the U.S. for years is that if I deposit enough money to buy $100 worth of food clothing & shelter one day, a year later the money in the account will buy one percent less. It has to do w/ inflation, and when inflation goes below a percent then banks have to charge negative interest.
You may have hit upon one more reason to fear deflation, that folks stop putting their money in the bank and banks have less money to loan out.
Unless of course you use your credit card and they pay you “bonuses” for using it. The retailers are forced to raise prices on everyone to pay the increased charges they incur for these bonuses.