I might be beating a dead horse here, cause I griped about it before, but it was one of my pandemic pet peeves. The Governor has signed into law a bill requiring all Colorado retailers to accept cash money as payment, with a couple of exceptions. The Governor did have some doubts about the bill, and it probably won't be enforceable, and even I could see it's a little iffy, but it's the thought that counts. This bill was intended to help the 7% of Coloradans who don't have a bank account or carry plastic, and probably a smaller percentage of contrary old farts like me.
The governor had doubts about the law because of the prohibition in the U.S. Constitution Article 10:
No State shall ... make any Thing but gold and silver Coin a Tender in Payment of Debts