I am spitballing and pasta throwing a little bit here, but my guess is the NFL's target with all this is young audiences, not the old established fan. They are catering to the next generation of fans to lock up revenue for the next 30 years. The older fans like many of us...they are counting that the losses they get through this will be offset by the new adds they get from the young crowd. Alas, i don't think teens and twenties right now are ever going to get hooked on football if htey are not already.
I agree no way they sit still for 3 hours and watch a game. My sons friends thinks he is crazy to love the Steelers and spend so much time watching and following them. He is 21 and had no choice growing up. He came home from the hospital wrapped in a terrible towel.