Oh, okay then. I thought you were asking because it was the "in" thing. I said do it for you, because I made the mistake of doing something because it was "in".
Back when the LiveStrong bands were "in", I got one to be "cool". I eventually got tired of wearing it, took it off, and got cancer 6 months later. It was kinda a slap in the face for me, so now it stays on me all the time.
I also want to be "pure", but it just means to me waiting until marriage for sex. I don't need a ring to say I'm waiting though, I know it and that's all that matters.