You're right I don't want this to be another comic geek discourse at the comic shop about how Superman can't get Lois pregnant cuz of his super sperm. But the fact is YOU obviously don't know comics if you're gonna stand to reason Bane is older than Batman just in better shape? No way. In Knightfall they're the same age but he had Venom to make him stronger. Here he has age.
Nolan's entire trilogy is laced w/some of the best Batman storylines: The Killing Joke, Knightfall, Venom, No Man's Land, The Long Halloween, Blind Justice and more importantly 2 of Frank Miller's best contributions to the Batman Universe which are super apparent: Batman Year One and The Dark Knight Returns.
Batman Begins has an entire portion of Year One replicated for the big screen (Batman using Waynetech device in his shoe to summon all the bats from the batcave to his location so he can get away from cops)
The Dark Knight has 2 scenes straight from The Long Halloween (Dent, Gordon and Batman on the roof making a pact to bring down organized crime and then later Gordon, Batman and 2 Face hashing it out at the end)
The Dark Knight Rises has too many scenes to name but the most significant allusions or replications are No Mans Land (Gotham cut off from the world), Knightfall (Bane obviously and Bane Challenging Batman for Gotham then Breaking him) and The Dark Knight Returns (an old, battered Bruce dons the Bat costume once again after a 10 year absence, where he then fights a younger, stronger leader of a mutant gang who beats the tar out of Batman the first time because Batman underestimates his limits).
So after all this you're gonna sit there and tell me that Nolan is gonna not only give us a Bane w/no Venom so he can't hulk out but he's also gonna make him OLDER than Bruce? C'mon son. How's he gonna completely ruin a character such as Bane like that. Ask any BatFan and they'll tell you Bane is younger than Bruce here. You have no legs to stand on. I have gone and proved my point as to why it's logical Bane is younger than Bruce, now back up your Bane is an old buff bad *** theory. don't test my comics knowledge kid cuz I've stayed having Batman comics for 20+ years.