Originally Posted by ptkten
It's because straight women generally are more accepting than straight men are of gay people. The men's locker room would be much more hostile to a gay man than the women's locker room would be/is to a lesbian. Plus, I do think there probably are more lesbians on the tennis tour in general than there are gay men.
All this, especially first sentence. Really big part of tennis audience is middle-aged men, probably least accepting part of demography (not counting older ppl).