I have enough tatoos on my soul, I would never want any on my body. Nothing says irresponsible than letting a semi-stranger draw on your skin permantly.
But you'll go to a restaurant and eat food prepare by a complete stranger, under circumstances you know nothing about?
Ive gotten several tattoos without a problem.
But I have gotten bad food, even food poisoning by eating out, and yet... I still eat out weekly.
So, under your standards, eating out would be irresponsible.
Heck, I knew a guy that wouldn't hire a magician for his kids birthday, as he believed that all they are just "under the table pedophiles"... and thought it was irresponsible for parents to subject thier kids to those kinds of people... but he is wrong. He was an idiot for thinking that.
Think before you speak and think before you judge. Especially about something you know little or nothing about.