User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-99.97.21.38-20120908014405/@comment-1038387-20120908112628

The dream scene is from "Batgirl Returns".

Ages in the DCAU are a tricky thing as they didn't seem to care much for that kind of continuity.


 * Bruce was never given an age in the show, but I seem to recall Paul Dini saying he was a perennial 35. No source though, so don't take my word for it
 * Dick was around 18 or 20 as of "Robin's Reckoning, Part Two": the credits to part one say he was 10 when his parents were killed and in part two, it says nine. In the episode, he claims he waited half his life for revenge on Zucco - ergo, he's 18 or 20 (or 19...).
 * Barbara's age was given as 20 in "Batman vs. Mister Freeze: Sub Zero". But in "Girls' Night Out", she wasn't 21 yet.