Very smart, I'm sure you'll agree.
The little one, however, decided that the waistcoat that had been found for him (so he didn't feel left out) was not quite his thing. He opted, instead, for a more John Travolta-style look and lacked only the medallion, chest wig and BeeGees soundtrack by the time he was ready....
I don't know what my extreme sons say about the nature/nurture argument but all I know is, they don't get much more different than my two.