Really, I think the idea here was just to touch the most customers possible. When you study sale or ad, they literally tell you that blacks can't identify to whites and whites can't identify to blacks so you must always have diversity in your models. I remember me and most other students telling the teacher that this was a stupid idea, and he just said something like we didn't know how people think.
As for the boy playing with dolls, I knew a lot of boys who admited that they played with their sisters dolls when they were kids, and they did not become homosexual. Again, the purpose is clearly to sell to most customers possible, telling little boys "See, dolls are not only for girls, so ask your parents to buy you this !".