Sugar and spice

What are little boys made of?
Slugs and snails
And puppy-dogs' tails,
That's what little boys are made of.
What are little girls made of?
Sugar and spice
And everything nice,
That's what little girls are made of

Now I don't believe this crass piece of sexual stereotyping for a moment but it remains a fact that while H. charges around getting muddy at mini rugby, A. will patiently cut and stick for hours. As I am not their parent, I cannot be blamed for the conformity of their preferences to gender stereotypes! Nature or nurture, I have no idea!