Does the tattoo have significance and a story behind it? For example I have an aunt who got a tattoo of a pink breast cancer ribbon after her sister passed away and her daughter was diagnosed with breast cancer. So if she were to write about it, the essay would be about her relationships with these people, how breast cancer has impacted her life even though she’s not the one who has/had it, and how the tattoo relates to that. Something like that I can see working. But just about a tattoo? Nope. And if you are in a state where it’s illegal for your age, that is a concern as well.