 That allows other people to get into the bar. When you were growing up and you were underage, if you went drinking around 17, 18, 19, whatever the hell it was. Okay, you probably used the ID of someone you had never even met. Okay, and you might have even given that ID to a younger sibling. Or you might have had that ID given to you from an older sibling. But essentially, generations of members of your family were able to go drinking because of somebody's old driver's license.