I'm normally not one to make arguments like this, but, if a bunch of Persona fans have come into this thread saying they'd like a college/older cast, who are you to dismiss that as not interesting?
Well, at a certain level, the problem with this idea is that it stems from a fundamentally incurious attitude about the game. Persona is a franchise that, from its inception, has been built in large part around the concept of capturing life in Japan at a very fine level of detail. In P3 and P4, the game sets out to demonstrate even minute elements of the cultural, social, and organizational experience of life in an urban or rural (respectively) area, with immense attention to the details of social clubs, or school scheduling, or holidays, or what-have-you.
I understand that people are thinking about their own Western college experiences and saying "man it'd be neat to see that reflected in a game," but that experience doesn't exist in Japan. Trying to apply it to the series would mean just inventing something and shoehorning it in, and giving up on all of the slice-of-life realism. It's just kind of self-centered to prefer artists to pander to members of the audience rather than reflect their own experiences in their art.
Dude, have you even read what I posted ?
I did. I think the idea of translating anything about the way Shepard is depicted in ME into Persona sounds awful.
What makes Shepard work? Part of it is that, no matter what you do, his/her personality is very well-defined and expressed already -- through the dialogue that gets written, the tone of voice, and way that the full dialogues with party members fill in who the main character is. There are basically two personalities for each gendered Shepard, the Paragon and Renegade (and then whatever inflections you can build from mix-and-matching those two.)
You apply that to Persona and it dramatically changes the experience. Both MCs are designed for you to pour your own personality into, and the game encourages that with choices that have shallower but broader character impacts (like what clubs you join and what S-Links you pursue heavily.) Voice them and that element of definition vanishes -- you're just filling in lines from a pre-defined character. All the Megaten RPGs (even DDS, which is supposed to be a cinematic story game) have silent protagonists for exactly this reason, and it's one of the most consistent tropes in the franchise. I don't think it'd be good at all to break away from that.
(That said, it's worth discussing, and I apologize for dismissing it so offhandedly in my first response!)