Body Canvas, Art or Graffiti?

My daughter got half her head shaved today. No, I don't mind it at all. I think it looks awesome. I encourage her to express herself. Although the things she chooses to express herself with are not what  I would do. She has her ears gauged, and she dyes her hair every once in awhile. I find it different from how I expressed myself when I was her age. I was writing a drawing to get out the feelings inside, although some things shouldn't have been let out. If I were to do now what I did back then I would've been suspended and/or sent to seek counseling. The only thing that has me concerned about my daughters expressionism is that she wants to get a tattoo, and that is such a permanent thing. I know you can get tattoos removed but that costs even more money. I only just got my first tattoo last year, and yeah I'd like to get more, but not impulsively. These kinds of things need to take much more careful consideration. A young man might want to get a tattoo of skulls and such. But fast forward ten years, twenty years, do you still feel the same as you did? Is it something that you're still going to be proud of? My daughter has all of these wild ideas for tattoos, but it makes me take a step back and look at the big picture. Is this something that is going to have relevance later on in life? Yes, the body can be a canvas, but the picture will always be the same. Is this a perceived timeless piece of artwork, or a spur of the moment act of graffiti? Although I must add that some people get "safe" tattoos; the butterfly, or the frog, or the name of a loved one that has passed. A tattoo with significance. What about you? What kind of tattoo would you get? Or are tattoos not your thing and you are happy with how you look?