Because you are their first experience of love. Because you are the center of their world. Because one day they won't climb into your lap or want you to push them on the swings. Because we mothers are always behind the camera and so rarely get in the frame.
We are always going to wish we were 15 pounds lighter before having portraits made, but to our children, we are just mom. We are perfect just as we are and they will want to see pictures of us with them after we are gone.