I quit paying football any mind when my kids quit playing.
For a while, it was their only exposure to mandatory indoctrination...er, I mean public edumacation. My oldest boy was a monster, and the coach used to beg me to let him play, cuz at 13 he was ~300 lbs, almost a black belt, and a natural leader. When he decided he wanted to try it I took him to a practice.
Knowing my kids would rebel, I wouldn't let them cut their hair, so with his helmet on, he had a sort of skirt of hair coming out. Very cute =p LOL
The coach told him 'ok these three guys are gonna try to get by you, and your job is to stop them from gettting to the QB.' He nodded, having understood.
The coach blew the whistle and the play began. He grabbed all three guys, threw them to the ground, and stood over them pointing his finger, meaning 'stay down'.
They all threw up their hands and said stuff like 'ok dude!' while I fell down on the grass laughing, and the coach came running up to tell him he wasn't supposed to use his hands - but great job!
LOL
He became captain of the football team, and took 'em to state in his senior year, for the first time in 47 years.
So, I was a football fan for about four years.