My husband and I go round for round on the infant ear piercing. We do, however, agree on being 18 for piercings and tattoos. I went away to college and got my belly button pierced (recently took it out for pregnancy and have put it back in now-with the linea negra, it's not so cute anymore!) I also pierced my tongue. That was not something they liked at all. They actually reimbursed me for the piercing and paid me $20 profit to take it out. I guess I really wanted the money because I took it out! I didn't get my first tattoo until like 24. I finally found a place on my body that wouldn't hurt too much and would not be visible unless in a bikini (my upper thighs) I never have to worry about kids at school seeing it!