I dunno why, but I've always been better at talking with my seniors (20 years my senior and up) than with my own age group.
I don't particularly show more respect to my seniors than to my own age group, though. I try to treat everybody as respected peers, unless they appear to look down on me, in which case I am quick to disregard them.
Of course, if I've wrongfully judged someone, I do try to make up for that.
And I try to hold off on permanent judgement if someone is behaving very different at different times, you never know what's behind that - crazy people is people too.