I don't think you can legally ban anyone based on age. How do they decide who goes to what games? Is there a lottery? Do they refund the cost of our season tickets if we're not selected, or try to push the money into next year? That's what happened to the missed games on my Jazz tickets. Do they do a lottery for each game? We've put up with a pretty bad home schedule for a lot of years now (with a few exceptions [e.g.: USC last year, Boise State]). It would suck to get selected for the weak games.
I'm in the same situation with my Jazz tickets. Games won't start until around Christmas time from what I'm hearing. How will they select who will be able to go and who won't? Meanwhile I'm paying for my tickets every month.