That's pretty messed up.
"Hey man, when did you get that tattoo of Tigger on your arm?"
"When I was two. Apparently, I was really into Winnie the Pooh & Tiger and my parents though it would be a cool birthday present."
"Did you even want a tattoo?"
"No, all I really wanted was the lollipop"
I agree with Chia. 18 should be the minimum age regardless of parental consent. BTW Chia, that tattoo artists looks kind of like you!
[edited to add]
At what age can my child get a tattoo?
Legally, anyone can get body art as long as their parent or guardian signs a consent form. However, Baby Ink will not work on anyone under 6 months of age, as their sensitive skin does not react well to the ink.
http://www.babyink.com/info.html