User blog comment:Leviathan2186/Old Humans in Mass Effect/@comment-5607736-20130804012320

Well you do have admiral Hackett, he's certainly up there. Also, you have Helena Blake, she's clearly old. Overall you're right though, you also don't see any fat people though. So it probably comes down to them trying to save a few bucks here and there on background NPCs in order to add more to the action and detail or what not.