I used to love getting student section seats as that was always the rowdiest spot in the stadium. Not sure how much is generational v. us being a 4-8/5-7 team for close to a decade.
I think it's a major factor. If you're 19 years-old, Nebraska hasn't had a winning season since you were in the 5th grade. You may not even remember when they were consistently winning 9 games per season. And you likely have zero recollection of players like Zac Taylor, Joe Ganz or even Suh.
And that's really just for the kids from Nebraska. For the out of state students, it has to be really difficult for them to manufacture any affinity for the team when it's such a dumpster fire.
However, I will defend them a little bit. Wisconsin has been winning for a few decades now. And they have the most overrated student section in College football. if they didn't do the stupid Jump around thing at the start of the 4th quarter, very few of their students would even show up.
I still think the blue hairs are the biggest problem for Nebraska. But i will add another component that I've observed at games over the last decade:
A parent or aunt or an uncle taking an elementary school aged kid to a game. This used to be something that happened when Nebraska played Pacific or Utah State in early September. But now that Nebraska has become a bottom feeder, tickets are inexpensive, or season ticket holders are willing to part with them easily.
This means random folks and children are attending league games vs opponents that matter. I cant believe the number of times I've talked to some random woman from some random town escorting her 8 year-old nephew to his first game, and then they spend the whole game walking back and forth to the concessions or the bathroom.
I Think it's easy to point fingers, but the biggest culprit has been the shitty football team. There is a cause and effect for everything.
THe effected outcome resulting in a listless stadium, below capacity, and scattered with disinterested students, casual fans, and old people is caused by a bad football team that has seen 10+ years of terrible leadership.