I don't think the population shifts have anything to do with 17 & 18 year old's perception of a school being or not being a being a desirable destination. Blowhio st and meatchicken still have exceptional support, great facilities, and a large and rabid fan base. Add the conference network to that mix and you still have attractive schools for young student athletes.
The big can't count conference itself has lost some luster by losing ooc and bowl games. That may be more a result of parity than anything else.
It absolutely does. Those kids used to grow up in what we now call the rust belt. Many families have moved to southern locations and that is what the kids now know. Good weather, just as good if not better fan support than anything in the RB schools and facilities that match anything else out there. There is a reason the SEC has taken a giant leap forward and the BIG has stayed the same or regressed. They just don't have the overall talent pool that they did 20 years ago to pluck players from.
That is not to say there are no athletes in the northern areas. There are just much, much fewer. Then spread them out over the BIG and ACC schools and then what schools like Mijammi, UF, et al take from the RB areas, it's just that much harder.
Hey, come here to Lansing, Michigan. We have a week of fall and a week of spring. The rest is either brutally hot with high humidity and mosquitos the size of RV's or brutally cold but don't worry. The wind is always blowing. Or go to Florida.