Definately worth while many of us in aviation have worked in airports prior to getting the first break.
I did 3yrs in total mostly in Airfield Operations while studying for my ATPL's and doing my CPL/IR. The experience I gained while working in OPS gave me such a good grounding in aviation and I would recommend it to anyone even if only for a week!
PS we had work experience students with us on a weekly basis so hopefully your local airport does to. Enjoy
