Well, the man leads the foxtrot and hustle, too. Kids dance in clubs by themselves sometimes. Does that mean they are asexual? It is very tempting to try to say something about people by the style of their dance. The fact that the man leads is more of a convention to me. The woman does not do it for the same reason we drive on the right side of the road in the US. Somewhere on earth, there is probably a dance that the woman leads. Does it say much about the people who do it? Maybe, maybe not. I can say one thing. If the dance a people do says something about them, the Porteños are probably the most attractive people on earth. I have a good article that has been floating around the milongas here that I will try to print out and put here later. It is long. I don't know where it came from, but it is interesting, and I believe a woman wrote it. Nito Garcia uses the word "protect" quite a bit when he talks about the man's role in Tango. Of course, he is from a completely different world. One of the teachers I had a long time ago told me it was important for the man to lead. He said, "You better do it now, because the woman leads in the house. The Tango is the only opportunity the man gets to lead."
