Most children have them as babies with a booster ... Make sure she has had her latest booster if it is due before her ear piercing. The ring or stud can cause an allergic reaction.
While the age debate is one thing, there's also the issue of whether parents should pierce their children's ears or whether it should be a choice made by the child themselves. "I had my daughter's ...
I adored my pierced ears…for about two years. Then I went into the hospital to have my second child, and the holes closed up. Thanks, hormones! For several years, I left them that way.