Am i too young for this bag?

I found the coach tonal signature denim zip satchel on sale for $120 (marked down from 398) and i thought it was a crime to not buy it...but when i took it home and tried it on i started thinking that it might be too old for me (i sound silly, i know). I'm 17 years old and short (5 foot 3 inches) and its kind of a wide bag...its a really beautiful bag but i don't know if its too "old" for me. Naturally i didnt return in because i could always give it to my mom if i couldnt carry it....or i could stare at it and wait until i grew up or something.

what do you guys think?
here's a link to it on amazon: http://www.amazon.com/AUTHENTIC-COACH-TONAL-SIGNATURE-SATCHEL/dp/B001DKU1RS