I mean this most sincerely, Your parents must be truly proud. I know I am of my teens wanting to see and get pictures with the characters. Of course, I must admit, it is a little easier for them, they have a 3 yo sister, so we use her as an excuse.
But even before her, they were 12, they were always willing to get a pict. with any character. They still seek certain autographs too. I'm sure this is not something they brag about with their classmates when they come home. However, they do have a few friends who understand when they get excited about getting a certain autograph or picture.
Get as many pictures as you can. They will each have a special memory for you with your own children some day. Perhaps you DD or DS will someday look at a photo of you and Peter Pan and say WOW! you knew Peter Pan?!!
I love to see older "kids" enjoying all aspects of Disney. Even at halloween time, I enjoy seeing the older kids dressed in custom and they always recieve extra candy at my house. We all need to hold on to the fun part of being young as long as we can!
Enjoy! Spread the joy!