Neither of my children (one girl, one boy) was interested in knitting, although I have knitted since I was a child. Boys and girls were both taught in my school, although we made different things.
I wonder if it skips a generation? My grandmother was a knitter, but my mum didn't knit (although she knew how). I think the fact that she knew her own mother would make things for her meant that she didn't have to do it herself, and perhaps my children feel the same.
I am knitting a jumper for my daughter just now, which reminds me that I need to finish it before she leaves tomorrow, or I will end up having to post it to her.