I don't think it has anything to do with age, I'd say it's purely a question of personal preferences.
The first people I remember looking up to were covered in tattoos, I guess it just struck me and marked my imagination.
I will never encourage or discourage anybody from getting tattooed, in fact I very rarely discuss this matter (even if some of my tats a very appearant and I get asked about them sometimes).
I see it as a very personal matter, from start to finish. All in all, the only thing that's important is how you feel. I feel better about myself everytime I get tattooed.
Call it a crutch if you will, it kind of is in a way, but I wouldn't exchange it for anything in the world.
Peace, happy future needling to my inked companions.