How do I convince my parents to let me get a septum piercing?

First off I think you're too young for that kind of piercing, but if you want it them by all means... you're mom is right though, piercings are addictive, I have piercings and at first it was just my cartilage, then just my nose and so forth... though I guess an argument could be that you could always take out a piercing, its not permanent, plus its pretty much just the inside of your nose so no one could see it after time...