Well, neither of my 20 something boys have piercings, but the marine has the one required tatoo (big USMC letters on his bicep). Yes, this is the same one who shaved his legs all through high school. Personally, I do not like tatoos or piercings, other than in the ears, but almost every young person i have worked with has them. It's just a fashion statement, really. I would take Silver's approach. My kids tell me the important stuff and even ask advice on subjects that most sons would never discuss with their mom. Since I would prefer to keep things this way, my advice is to carefully choose your battles. Once you've cleared up the health/safety issues, then i don't see why she shouldn't get the piercing.