That kind of thing happens to me all the time. I draw a webcomic, and evidently the vast majority of comic readers are very young. One time I got a letter that said, "I think it's great that someone like you (translation: old fart) can draw a comic". Another person actually wrote me this: "I hope I'm like you when I get old". I thought, well, gee, thanks, I think. I'm 55. Maybe I'm kidding myself, but I thought that 55 was still middle-aged. Isn't it?