I have no tattoos and am proud to say that neither of my sons have them. One was a Navy guy.
They do not improve anything and I can think of no reason to get one. The biggest reason not to get one is the image of the person having them. Like it or not it produces a negative image.
I believe that I’m smart enough to make my judgements about others based on something more substantive, like their character and behavior, not to mention their prejudices and blindness to reason.