Still doesnt explain why Dick has aged more than Batman though!
Did he?
If Dick went from being, say, 15 to 22, I can accept that. Meanwhile, Bats aged from 25 to 32. A decade of age between them can make a lot of difference in how much they physically age.
Actually, Dick was supposed to be about 10-12 when he started and now seems to be about 25 or so.
