It is all personal taste.
I think if people decide they want a tattoo, then they should wait a year, and then if they STILL want one - go for it. Rather that than do something you regret.
I defiantely want a tattoo. As soon as I can afford it, I will find a GOOD tattooist, and do it.
Many people talk about the age thing. To me, even if I grow to dislike a tattoo I get (which I won't as I am thinking it out veeery slowly), surely I will always looks at it, and think of when I got it. It will take me back to that time in my life, and remind me of the person I was, the things I was doing, and how I felt then.
I think that is a great gift you can have, to draw beautiful art on yourself. I think tattoo's are beautiful PROVIDING they are well thought through pieces done by someone who is GOOD at their trade.
But even something UGLY to me, often means ALOT to that person. And who are we to judge what someone should do to their own body?
I respect that some people have nothing done to them. I respect the fact that people get all sorts done!
In fact, I think the only thing that bugs me is seeing babies and children with ear piercings. They should make that kind of decision for themselves.