A cashless society will be a disaster in other ways, too. You think banks are bad now? You dislike fees? If there's no cash, third parties will be able to hike

A cashless society will be a disaster in other ways, too. You think banks are bad now? You dislike fees? If there's no cash, third parties will be able to hike percentages on transfers of all kinds. You could see credit card fees of 10+ percent, which will be passed on to you even if you're not aware of them. Cash has to exist as an option to keep middlemen honest. Until, that is, we achieve communism... but that's several decades away at a minimum.