It's absolute insanity! When we end up in a cashless society the banks, which are currently being protested worldwide, will have their greedy fat fingers in every single transaction that takes place.
And second hand goods? Many people buy second hand goods because they can't afford to buy them new, because they're poor. Many of us are becoming poorer everyday, which is also why more and more of us are SELLING our used goods.
It may become a new form of discrimination against people without checking accounts, debit cards, or credit cards. Believe me, they want every last one of us in that system, and they want it bad.