Are ghosts gender free? I think the term gender - if different to your actual sex - is a mental delusion. And a ghost is a ghost of someone that had a sex? Do you lose that when you "become" a ghost?
But I also never saw any evidence of ghosts, fairies, gods, elves or anything else magic being real. So the only sane conclusion is that they are not real unless proof to the contrary appears. So I dont suppose it matters!
Sheesh, it's hard being a ghost, always gotta explain yourself.
Sure, fairies, gods, elves and all other imaginary friends are... imaginary. But I'm right here! You're talking to a ghost so how can you not believe?
Ghosts, if you follow Casper, don't even remember who they were so no we don't retain gender from when we were alive.
Always have to educate the living, sheesh...