Let's see. The joke is all about how it would work in theory. Then you bring real logic into it and miss the joke completely, then post an image about how I'm being an idiot when you don't even get a simple joke.
Actually, even in theory, Stocking was right.
No Shirt, No Shoes, No Service. We hold the right to refuse service to anyone.
Well, if you have a really horny girl working for the restaurant...