These days I catch myself thinking about things from the business owner's point of view. If a guy who looks very much like "Joey-JoyRide" comes through the door, I'd have misgivings about letting him drive an STI, too. When we were teenagers, my sister and I would dress up a little, and go test drive cars that we couldn't even entertain buying.
That's one of the lovely things about being middle-aged. If you come in with some gray hair and crow's feet, and are able to form complete sentences without the use of the word "YO", they let you drive their cars.