So... what exactly is the aim of not saying there are two genders, anyways?
Shouldn't this be about equal rights instead of eliminating the existence of genders? I don't really get WHY they're doing this.

Besides, I think it's good for children to have a sense of their gender. Being a girl is great and just because I'm a girl, it doesn't mean I can't do boys' stuff. (Aaand the other way round that's great as well!)