My oldest granddaughter looks a lot like me. In fact, I call her my "mini-me." When she was about 3 I found a picture of myself at about the same age. The resemblance is really remarkable. I showed her the picture and asked her if she knew who that was. She said, "Wexie." (Translation: Lexie) I said, "No, that's grandma." She looked at me like I was nuts! I don't think she could even imagine that I was EVER that young!!!
My granddaughters are 5 and 7 now and they know that I'm their daddies mother. A few weeks ago the 5 year old came to me and said, "Grandma, make daddy let us go outside." I said, "I can't make your daddy do that." She said, "Why not? Your his mommy aren't you?"