LOL...what the hell is he supposed to say? When is the last time an athlete in a sport like this cited something other than wanting to spend more time with family? Is he supposed to say he's bored because he has nothing to prove? That he's not sure it's worth playing for Tampa Bay since they might not be great next year? Of course family is always a consideration...so is health, long-term injuries, relationships. All these things are probably factors...it's a complicated decision. I'm sure he doesn't want to pull a 2010 Brett Favre and come back for last season and look like a circus clown, but there are multiple risks/rewards here.
If he retires, there may be no better last game besides winning the championship. You pretty much have to lose on your way out, and that was another epic comeback...a legendary fact that in his last game, he overcame a 27-3 deficit before the defense allowed a last second field goal, ending the career of the greatest ever.