Just watched S2E1 of the new BBC Sherlock series.
I'm was really happy to see an asexual character on screen. The fact that he's the main character, titular character, and the show is extremely popular; even better!
How can alternative lifestyles gain acceptance if they are never portrayed in popular culture...at all?
Moffat is quoted as saying this: "There's no indication in the original stories that he was asexual or gay. He actually says he declines the attention of women because he doesn't want the distraction. What does that tell you about him? Straightforward deduction. He wouldn't be living with a man if he thought men were interesting...If he was asexual, there would be no tension in that, no fun in that – it's someone who abstains who's interesting. There's no guarantee that he'll stay that way in the end – maybe he marries Mrs Hudson. I don't know!" (
http://www.guardian.co.uk/tv-and-radio/2012/jan/20/steven-moffat-sherlock-doctor-who?INTCMP=SRCH)
So basically, Moffat's saying that Sherlock heterosexual and celibate. I disagree that an asexual character would not cause tension and that it would be uninteresting.
Yes, there's less to explore, but by sheer virtue of it being under-explored in popular media it would be something new, and therefore interesting.