It's probably because those so-called MANLY men are not interested in this sport. Personally, I think it's because they have set in their minds that netball is only for women. Besides, who cares what those guys look like as long as they want to play netball. They are very good at it too.
My question is.. do the women have to look like men to play soccer or sepak takraw or rugby? Open your mind, please.