I know that I don't look very old...
I expect to be carded when I purchase legitimate alcoholic beverages.
I have even come to terms with being carded to get into a Rated R Movie (yes, it happened to me.)
But tonight... I almost got carded when trying to buy a Ginger Ale. GINGER ALE! that is about the most benign of all beverages... geesh. of all things... I'm 23! I can buy Ginger Ale if I want. It's perfectly legal.