TFS runs there cadets slightly different, 12-16 they are considerd junior members, they train at a seperate time for about an hour on the regular brigade training night ( at least thats my brigade), they get do everything bar BA, driving (obviously) and a couple of other specialist skills, after they turn 16 they become cadets and are allowed to attend regular brigade training and participate in drills and other training apart from BA and driving,
This seems to work well as they get two years of training in with the operational memebers and by the time they are 18 everyone has a good handle on them and there abilitys, also they can earn there ticket to ride so to speak and can then go to calls once they turn 18 and get a pager, not 100% sure ages mentioned are right but pretty close
maffu