How to Encourage a Teenager to get a Tattoo?

I've heard this argument so many times. It's cliche and annoying, but more importantly its wrong. A teenage kid mentions to an adult that he's thinking about getting a tattoo. Then the adult points out how different his body shape is since he was young. "If I had gotten a tattoo when I was your age, just imagine what a mess it would look like now." He might even have a