This is just silly. Last I recall, the only thing stores are required to accept for payment is cash. They don't have to accept credit cards, NFC, checks, etc. It's their right to refuse those forms of payments, and their right to fail if they do or don't. Blood sucking lawyers have ruined this country, just look at Congress.
Correct, BUT - this is why they are looking at ANITI-TRUST violations. It is against the law to collude with other merchants on such things. Its akin to price fixing. It probably won't work, but there are precedents.