Will Grocery IDs Become A Thing?

What started as the funniest news tidbit of the week has given me the creeps:

Trump said at a rally in Tampa, Florida that you need to show identification to buy groceries. (We have to show proof of age to buy  alcoholic beverages.) My reaction was the usual eyeroll, followed by mild horror: Any regime that would confiscate children is not above restricting access to food.