The other piece that is interesting in a state like Mississippi (also goes for parts of Alabama and South Georgia) is that the public schools - in general - are so bad that, sadly, tons of good HS athletes down there have no chance of qualifying for the NCAA out of high school. They may receive "passing grades" in their schools, but they're so ill-educated/prepared for an ACT or SAT that JUCO is their only chance. This is also very likely a huge driving force behind why JUCO football is so big in Mississippi.