Fran, I know EXACTLY what you mean! No matter how long ago it was that your own children were babies, most mothers have such a residual retention of those thousands of hours that they spent holding their babies! All I have to do is see a small baby and I remember EXACTLY what it feels like to hold them, the way their skin feels, to have them rest their head on your shoulder, or when their little fingers get tangled in your hair! And am I the only one who can still get tears in their eyes just getting a whiff of Johnsons Baby Shampoo? My niece has a five month old baby and I could sit and hold him for hours! I guess it's like what they say about riding a bicycle ... you don't ever forget! It's permanently imprinted on our brains! I think it's kind of the same thing as, when you're in the grocery store and a small child yells, "Mommy!" ... every woman in the store will stop what she's doing and intently listen, even if her own kids are middle-aged!
I am (not so patiently) awaiting a phone call from my daughter someday to tell me that she's pregnant! They've been trying for over a year ... hopefully I'll get that call soon!