Stop. Never ask someone why he has tattoos. If you ask this question you show that you do not understand the nature of a tattooed person.
Basically there are two types of tattooed men: Those mostly with only a small tattoo on their arms. They did it because it was hip. And some time later they tell you that you should never tattoo you. Forget them.
And then are the others. Often they have bigger tattoos not only one. The experience says that these men often made experiences in their life, which marked them. That’s why they mark them themselves - with tattoos. These men often had really hard times in their life. This is one of the reasons why you often find tattoos on soldiers, sailors … and gay men.
With their tattoos these men show that they belong to a group of humans who really know not only the bright side of life, but also the hard one.