as a mom, my advice would be that you don't want people to get the wrong 'first impression.' it can damage your ability to get jobs you want (although they may not tell you).
old tattoos sound kinda ugly, too.
check the references for your doctor. you don't want to be blind and tattooed.
My nephew's suggested rule for tattoos: never get a tattoo until you have wanted the same thing, in the same place, for five years.