Funny world. Negative interest rates would have been unthinkable a decade ago. Yet, here we are about to normalize that savings in a bank account are not okay.
> I learned "max 2 salaries in a bank account because you are being stiffed otehrwise as the bank doesn't pay interest rate" since I was a kid. It's as much hammered into me as "keep N months salary in savings".
There was a time when you put your money in a savings account and the bank will pay a reasonable interest to cover inflation and give you some extra. (The power of compound interest, anyone?). People's memory are insanely short.
Here is also what you might be missing: Central interest rate will gradually affect all aspects of economy and thus all investment vehicles. 0% interest means that any investment with yield will carry risk. Negative rates will mean that for society, on average, they'd be losing money on their investments.