I have 4 daughters. Waited til my oldest was 7 to get hers pierced, and once we got past the 8 weeks or whatever, we took out her studs and she wouldn't let me put new ones in because she was scared. So the holes closed. She's almost 10 and ready to try again. I don't care whether any of them ever get them pierced or not, but I admit that I do like the look of it. I want to get my baby girl's pierced but I feel like I can't since I didn't with the other 3.
Also, I know my husband would never go for it. (Though I'm tired of getting asked if both babies are boys, so there might exist the argument that it would help tell people her gender. . . if people weren't stupid. Pink and blue clothes don't help so I don't think anything can. </derail>)