There are a few ways to consider belly button piercings for teenagers. On one side, it is definitely her body. She is the one who will have the piercing, but there is another side to this of course. Like all other piercings, belly buttons can become infected. If your daughter does not take care of her piercing correctly, the infection could spread quickly. The result could be a hospital stay, health repercussions and a large medical bill.
Is your daughter mature enough to care for a piercing on her own? If so, it does not seem unreasonable for her to pay for her own piercing. Of course, you make the rules for your home. The ball is in your court when it comes to getting your teen’s belly button pierced.