I'd be willing to guess that those guidelines tend to skew toward past social norms and stereotypes rather than toward current behaviors of the groupings.
I'd be willing to guess you are right about that. There often seems to be a very extreme - almost cartoonish - notion about what is, or what is not, male, or female.
Lot's of guys find sports boring, and, at least in NorCal, and the West in general, there are lots of women who are way into sports, for all sorts of reasons. When I'm out in major climbing areas, or extreme skiing slopes, I see just as many girls as boys anymore. And if you don't think that girls don't do sports, or support sports, or that boys don't supports girls sports, you ought to go to UCONN, or the University of Tennessee, where the women's games sell out just like the guys games do. Championship games are championship games in big time NCAA land.
There does seem to be more than enough posturing and posing on both sides, the stereotype male deal, the ultra fem thing. And, in the end, it always seems to stand out, rather than blend in.