Right. It says on the currency that Kroger's MUST accept it as legal tender, for all debts, public and private. It doesn't say HOW MUCH they can charge, however.
I'd say...HYPERINFLATION here we come. Jimmmy Cawder II, deluxe.
No, Krogers doesn’t have to accept dollars for their merchandise. That is a misunderstanding of legal tender laws. It may benefit Krogers of course, but that’s another issue.