If you're paying a very high interest rate and/or have a significant balance such that the interest is a problem, that suggests that you don't have very good money management skills to begin with. Banks price that poor money management and the associated risks in to the interest rate you're paying. Giving that person a reprieve, even if only temporary, is likely to result in them just spending the money saved on interest elsewhere and not paying down their debt which would be the smart move. Meanwhile, the banks are going to make their profit so to compensate they'll reduce benefits others get for having good credit and/or reduce giving credit to risky borrowers. This is an idea that sounds good on paper but in reality would cause more problems than it solves.
