I first met Inez when she was a nanny for my friend who has 3 high energy kids, including twins. They love her. She began the tatoos, I think, for fun and seems to get lots of requests for it now.
She's great with kids as she also nannies for other families. She will come to a party and set up her work station. Kids get in line and pick a tattoo. The kids love it. I think it may be the interaction she has with them.