In vacation travel, as in holiday travel, singles are at risk for being treated as not fully adult. You know the drill - you get the back seat of the car, and the pull-out couch in the living room instead of a room with a door that shuts. Fortunately, these examples of singlism are not universal singlehood experiences. You can have enlightened friends and family members. Or if you have the nerve, some thick skin, or a sense of humor, you can stand up for yourself. Vacationing while single can actually be divine.