It's amazing. There's plenty of people who just have the gift of guessing, accurately, others' ages. But, there's a lot of other people who just never get it right. Although I'm sure it's peevish to always have people thinking you're younger than you really are, I don't think it's all that bad. Mostly, everyone actually assumes I'm older than I really am. I remember one incident distinctly, when I was in the 7th grade, my neighbors who had just moved in at the time thought I was a junior in high school! How does that happen?