13 year old's piercings

Hi all - I am really after some advice.  I am a weekend Dad and my 13 year old daughter recently turned up with piercings.  One in her septum (the bit between the nostrils) and an approximate 1cm ring in her left creating a hole.Her mother has given her consent however I cannot understand this given her body has yet to fully develop.Am I over reacting?...more
 @JennaHatfield ha, no not really, i had my rook (that part below the top part of your ear?) ...more