I believe that the idea of a 3-4 year old as a "child" is a modern concept.
It does make me sad (and angry) that each time I was pregnant, my next youngest child (so, when I was pregnant w/ Simon, they said this to Gracie and when I was pregnant w/ Fiona they said this to Simon), people said, "You have to be a big boy/girl, now! Mommy needs your help!" Um, NO, they do not have to suddenly grow up because I am pregnant!
oops, baby is waking