well, i think the pain thing is completely personal. i have two. one is on my left shoulder blade and it didn't hurt at all. the other is on my right ankle and it hurt a little but not much. i've heard other people say that the ankle is the worst place for a tattoo, but i'm not sure why. maybe because of the bone being right there? i didn't notice a difference with either one between the outline and the coloring. it all felt the same; but mine are all one color and that might make a difference. maybe different colors feel different?
if you don't handle pain well, maybe it's not a good idea. but it would depend on the size, the number of colors, and whether it was done in stages or all at once i think. you might be surprised. when you reach 18, have dave try a tiny little spot somewhere it won't be seen and see if you can handle it. if you can't, you have your answer.
on a completely different subject:
i have a question for any tattoo artists that might be among us. someone told me once that in the us it's illegal to have a tattoo put on your hand (the top part, not the palm). is that true - something about the veins and stuff. but i want one on the inside of my wrist and i've seen people with those, so what's the difference?