I was wondering if someone could answer this for me. I am thinking of joining the Air Cadets but only one thing is stopping me. I'm 15 and i've never joined before so if I were to join would I be with the 12 year olds or automatically be with the 15 year olds. I couldn't find any other answer for this and if I am with the 12 year olds I wont even bother with it but if I am with the 15 year olds then i'll maybe do it.