I believe that a minimal age exception is completely necessary. I mean, in ages 12-14 male children usually start going through puberty, where they mature and act less childish (not that there is anything wrong with being childish, i usually act like a 10 year old lol). Also, by age 15 most children have been exposed to life and its problems. I think that to be a moderator, you must be responsible, intelligent, fair, kind, and vigilant. (not a job for me lol) I have actually seen many 11 and 13 year old that posses these qualities. So, if you do, i recommend a Skype call with other mods or whoever accepts new mods to see if you have these necessary qualities. Hope this helped!
Maybe ill write a mod app someday.......nah im not that responsible.