Claig, I really hope you're right, but sadly I'm not a headteacher (yet
!) and so wield little influence
. The last school I worked at had one of these hideous non-competitive "Fun Days" instead of a sports day, but my argument that it was about as much fun as watching paint dry (and this was the feedback we got from the kids too!) fell on deaf ears.
edam, I take your point about excluding the girls, but there is a very real problem with boys and literacy and so I think it would have muddied the waters to include girls on this occasion.
Anecdotally, I think there is a case for teaching girls and boys separately in some subjects anyway (in fact a poster above mentioned that their dh went to an all boys' school and was taught in a completely different way). I used to separate boys and girls for certain subjects on certain occasions (project work in DT and science for example) with amazing results. Both genders worked differently and, I believe, more effectively, without the added complication of trying to impress the opposite sex!