Oh, I love this topic, really.
Lets talk about Argentine Tango. All that sultry posing about and throwing women in the air? Argentine tango was famously danced in the milongas by same-sex male couples showing off their moves to impress the ladies, or to fill time until the ladies arrived. The stylised dances of all styles that we see on Strictly have evolved from much baser versions of the dances and the male/female idea is just what we have got used to.
Seeing the all female couple dance last year made my heart soar, really. And when the two men danced together the year before, it was one of those never-forget moments.