I brought my son when I got mine done, he sat in the waiting room with my husband the lady at the front desk was obsessed with him and so where the rest of the workers.
As long as they are accompanied by an adult most places have no issue with it.. but I personally find it rude 99 percent of the time.. You have artists focusing on their art and babies aren't quiet 24/7 and that can really mess an artist up. I just find it rude, and disrespectful..
I took mine but I wasn't getting work done. My oldest daughter got a piercing. When I got my tattoo I didn't bring him, plus most shops won't let you get work done with a child most likely due to insurance reasons