hi there, I joined air cadets at 14/15 as well and now I’m turning 18 in august. you are not too old at all, and you can defo gain so so much experience and do so much + if your worry is getting stuck with people younger than you don’t think abt it bc there are going to be already present people & new ppl join all the time. plus when u go on events you’ll meet a million ppl ur age so don’t let that stop u !!
If you have any other questions just let me know x