I don't get why there aren't any laws formulated at the federal level to ban cashless stores. Not accepting the U.S. dollar as direct payment is pretty much ref

I don't get why there aren't any laws formulated at the federal level to ban cashless stores. Not accepting the U.S. dollar as direct payment is pretty much refuting the sovereignty of the U.S. government, no? It also concentrates financial leverage in a few payments companies rather than direct consumers, which may incentivize anti-consumer behavior like adding/raising credit card rates (what are you going to do, use cash in a cashless world?).