Welcom to the PF plastixemmi,
Your a luky girl getting a birkin at your age, and its good that you appreciate the crafstmanship of hermes products!
IMO if you know you are going to love the bag, and carry it ofter enough i'd say Why not? Also if you are deadly serious about getting one, I'd say try and become good friends with you SA and get your name on the list ASAP, as its horrendously long! lol!
I'm 15 and would LOVE a birkin, but my mum has said that if I get one it would be my only purchase for the whole year lol, and although like yourself I appreciate hermes, I'm also a big fan of LV, Chanel and Chloe, and I know that even if I do get a Birkin, i'm still going to want my LV's etc, so I'm kinda not ready for one just yet! Maybe for my sweet 16! lol!
xxxRosexxx