Tattoo : do or don't ?

I'm already thinking about getting a tattoo for months but since I'm 18, I'm thinking about it even more because I'm at the legal age to have a tattoo. 

The tattoo I want is just one word, fortitude, so it's not such a huge tattoo but it's still a huge decision..

If I'm getting a tattoo, I first have to decide where I want it : 

- the inside of my wrist

- the side of my chest (like Megan Fox on one of the pictures below)

What do you think of tattoos? And if you were me, what place would you choose? 

I need your advice, people!

Picture of the word I want as a tattoo

Beautiful tattoos