"A recent Harris poll showed that compared to Gen X, Millenials are 12 percentage points less likely to follow football, 8 percentage points less likely to watch baseball, and so-on down the line. Younger people like sports less,…”
The specific data for CFB are:
Millennials (18-36): 26%
Gen X (37-48): 30%
Baby Boom (49-67): 34%
So leaving aside all of the tactical “we should do X or Y or Z, recognize there are also long-term secular (in the sense of “occurring over time,” not “non-religious”) trends at work. If you reserve a section of your stadium for the youngest of the millennials and interest in sports in general (including CFB) is waning compared to older generations (and if you assume that even within the millennials, the younger ones are below their cohort’s average), you shouldn’t be too surprised to find it getting a little harder to encourage attendance than when their parents and grandparents attended your school.