All of my sisters do fiber arts (knitting/crocheting/sewing/quilting/tatting/etc)
My mom and both of her sisters do fiber arts of various kinds
my maternal grandmother was quite the quilter and made needle lace. I THINK she knit, but I don't know for sure. She was into other things by the time I knew her well
my maternal grandmother's mother got a certificate from a correspondence school in some sort of fiber art. I have some of her tatting. My mom has some of her crocheted lace.
my maternal grandfather's mother did needlepoint, IIRC
My paternal grandmother did needlepoint and knitting and crocheting. My cousins on my dad's side either do or did these things, too. I assume that my cousin's mom (and grandmother's daughter) also did these at some point.
I have some of the embroidery my paternal grandfather's mother did.
But when these things are around to play with, and they seem like the normal thing to do, I think the line between nature and nurture is quite blurred. That we all keep doing these things suggests that nature has a hand in it, but whether we would have found these things without nurture is questionable.
(My father is his own kind of artist - has done some beautiful woodwork, and now writes poetry.)