I think there are good cases to be made about pre-puberty vs post-puberty controls. Strong fences for the 4-8 age group is pretty different than than 9-11, 12-

I think there are good cases to be made about pre-puberty vs post-puberty controls. Strong fences for the 4-8 age group is pretty different than than 9-11, 12-14 or 15+