Yes, at 4 and 6 my dd's seem so old and sometimes it makes me sad. Of course, it's fun to think about what life is going to bring them, so that helps, but I still grieve from time to time. Just tonight when I was putting my 4 yr old to bed I was jokingly telling her that I wasn't going to let her grow up, she laughed and said, but I'm going to anyway, Mom.
When people think I'm crazy for cuddling with my children until they go to sleep, I just can't imagine missing out on that special time knowing that a day will come when they will not want me to lie with them at bedtime. That's almost unbearable to think about.