Originally Posted by Man of Tomorrow
They could grey him up much more. Snyder did that with all the Minutemen survivors in the present of Watchmen.
Pa Kent is generally grandfather age around the time Superman begins.
It's been that way in all the comics (except Birthright due to the Smallville TV series tie-in) and even in The Animated Series and all the Animated movies.... and the serials, and the Reeves series.
I don't see what relevance a few years has. Ignoring that this is a reboot so it's not particularly obliged to strictly follow previous iterations, what advantage is it to age an already elder actor?