A tattoo is for life, unless you get expensive laser treatments. How will you feel about it when you are a senior citizen? One day, it wil happen. If you are at all hesitant, I wouldn’t do it.
Tattoos are so common now and so many people have them. But what is also very common are stories of regrets about tattoos. Personally, I would never get one in a visible place, which might defeat the purpose for some people.
Here are some easy and interesting graphics: http://www.businessinsider.com/what-hiring-managers-really-think-of-your-tattoos-2016-1