Recently became curious about this, particularly on the Rebel side of things.
Back when I started proxying Jake Farrell after Reb Aces was first spoiled I'd refer to him as "the old A-Wing pilot in RotJ" whenever I had to explain which character the card represented. That eventually got shortened to "the old man".
Recently I've been using Horton Salm, another old guy, who now also gets referred to as the old man during gametalk.
So, naturally, now I want to figure out which other pilots are old dudes, so I can make an All Old Man squad.
Is Chewbacca the secret answer to this question?