i remember thinking that exact same thing when i was in like, 6th-7th grade, since i had a lot of friends who were dudes and drew things so differently than all my other friends who were the opposite gender. But now I think it'd be too close-minded to just say that your biological sex corresponds to the way you draw and develop a skill in art/anything at all. that's just crazy and i'm sure a lot of people would disagree...
there is one thing for sure and that is that boys and girls are different, but are they really so different people are bound to draw differently accordingly to whats in their pants? like I have once thought with some boys "wow.. you draw as if you were a girl!" its just this.. weird.. crazy.. i mean...
i do feel sexist when i say this and i feel like im labeling people, and this is coming from someone who always denies the fact that different genders mean different people
i agree with you though, if you really do pay close attention, you can find a similar trait in all the art done by girls, as you can do the same with a male, but neither gender is superior as far as the finished product goes, i wouldnt go so far as to say girls do it better, but they certainly do it differently
(wow this big blob of text was really unnecessary sorry)

It may be a cultural thing. In fact it probably is. Though it does seem odd that it seems to be so common as a cultural thing for different separate cultures...

man woman whatever, just don't stop givin us bub and dylan!

bubs visits an old pal...

THIS WEEK ON BUB N DYLAN: Bub gets deep about his leadership.

Delightful!
 
 

It's like Spongebob with less sexual innuendo.