I passed this thread by a time or two - but like Stephanie had to check it out when I saw 5 pages of responses!
Might as well post my opinion while I'm here.
I don't know that it's that new of a trend.
I remember having a conversation about it with a friend a couple of years back when her DD wanted to start. Mom was not thrilled and wanted me to side with her. I had to

since I'd been shaving mine for years. (hey, maybe I was a trendsetter)
Honestly, I think it's much quicker and easier than shaving my legs (now THAT'S a pain) and I don't feel self conscious or compare my arm hair with anyone else's anymore. I don't like to admit it, and I guess it could lead into the whole peer pressure and what's socially acceptable and why can of worms... but I used to do that.
Don't even think about it anymore.... unless I see 5 pages of arm hair discussion on the Dis.
btw, I did the bleach thing before I decided to shave. Maybe the kits have improved, but that was a stinky, messy, time consuming pain.
Good luck OP
I know it's tough deciding which battles to choose with teens. I'm just glad this one won't be an issue at our house. If they do - fine. If they don't - fine.
btw, I also hope I make it through without confronting the no bra and/or underwear thing! so far, so good. knock wood.
