Honestly I have supervisors who have tattoos as well as coworkers, they do not care- or think that my ink is tied to my job performance. But they do believe that since half of my job is customer service- it's the same reason that we should be dressed nicely, well groomed, not stink etc. People who are in customer service want people to feel comfortable no matter what. It's because not everyone likes tattoos and do have those aversions to it, not necessarily because it's our employers who have the aversions. They have to do what's best for the company. It's business. Hire the person who will have the best customer service. I work for the city government and have to assure them that their drinking water is safe, despite the fact that the plant supervisor is covered in tattoos, I'm the face that people see and are comforted by.