Forever with you

At dinner the other night, Lanie, the baby of the family, told us that she never, ever wanted to grow up and move away from us, not ever.  I got a good chuckle out of that and she said, really, she didn't.  Her big sister chimed in with the same because of course, she doesn't want to leave mom or dad either.  But big brother was there to tell both of them, "girls, you'll change your mind someday and you're gonna want to leave." 
Hmm, what does he know that they don't?  Does he know about the teenage years?  Does he have an inkling to what independence feels like?  Or has he had enough years to look through mom and dad and see that we don't have all the answers?
Whichever it is, I ache a bit knowing I won't have their full devotion forever. 

On a similar note - the next night at dinner, Lanie told us that she wanted to get marwied (that's married for kid talk) and have a white dress like mama.  Should I break the news to her that her husband (or what she calls a daddy because she can't distinguish between the two) will not want to live with dear old mom and dad like she does?  Nah. Not yet.