I loved 7th Grade Texas History!... wait do yall take texas history too?
anyway, I think that the different types of schools for each region would give every game a different feel, because imagine Jimmy, who has grown acustom to the laxed style of Bullsworth (like how you can go to class like one minute before it's out and it's like you went the whole period, or you can do whatever you want when your out of class (within the law) moving to a northern military school, with it's stricter rules, dress code, and cerfew. This could add a lot of difficulty to the game.
Also about him moving to the south where most of the boarding schools are religous schools, (baptist, there aren't catholics in texas), where instead of the stricter style, the rules would be more laxed, but everybody would be worried about your soul and stuff (I feel like there will be more hypocratic teachers/staff).
and it could be whatever kind of boarding school that california has (if none then they could have Jimmy go to a public schools, and it turn out that he if from california, and have his main house be his actual home (they could even not ruin the whole no supervision thing by having his parents (his mom and possibly old guy if they're still together(if not that could be the reason that his mom leaves town, because it turns out that she signed a pre-nup would not get any money and she is deppressed/has to find work, and being the fine parent that she is would up and leave Jimmly)
And for there could be different cliques for each region, I'm not sure about the north, but in the south there could be something like (I hate to say it) cowboys, ghetto people, Preps )(our preps are different, because they just wear polos, and whatever Holister makes), Megajocks (more powerfull than regular ones because the south is better at sports.), and I don't know about other towns, but at my high school Goth and Nerds are interchangable (it's not about the whole goth thing, but just because its all nerds that choose to dress that way here)