I am starting to feel extremely old now that I am 20 (in mission age). I really try to hide my "age" from the members to avoid the dumb comments that always follow (i.e. "Oh you are almost home," or "You are probably getting trunky huh?" or other dumb things). The way I avoid that is when they ask I just say that I have been out for over a year, they usually just say, "oh okay," and leave it at that.
They were all so cute together sitting outside of the door of one of the part member families that we visit.