I always read comments on I'net asking how old Batman is supposed to be in DCEU.
Some think he is too old now to fight criminals in his solo movie, that's not the case, I mean.. he is not supposed to be a 57 year old.
At the time BvS was filmed Affleck was around 43, and his character (Bruce Wayne/Batman) was supposed to be in mid-forties (let's assume 45)
There's a dialogue in the movie where Bruce Wayne says "Now I'm older than my father was."
He wouldn't be saying that to Alfred if he was a 57 year old (Because it would be stating the obvious ) So, I don't know where this weird idea that Batman is pushing sixties is coming from.