It is very difficult to explain Norman, I suspect you have no brothers either. The only way for you to understand is to have a boy, and then you would eat your words!
Society, today, doesn't want boys to be so physical, they want them to sit still in the classroom, they don't want them to take risks.On MN the majority want girls, at least one girl anyway.
Scouts isn't producing 'tough' boys. They take physical and mental handicap. They integrate. They do cookery competitions, community work, put on plays as well as the outdoor stuff. They take girls who want to join-many don't want to. They do however use the boy traits and use them in a positive way.
Society doesn't want boys wrestling at all opportunities-but they still do it!
I would bet that your girls and their friends do not playfight everytime they are bored? I would bet they don't get huge enjoyment from always rolling around the floor like bear cubs?
It may depress you no end, but I saw 5 yr old stories, with a broad title, and no name. In every case I was able to tell if it was a boys story or a girls.
The whole conditioning thing is chicken and egg type thing IMO.
I predict that the couple in Canada with the genderless DC will fail.
Anyway-do we want to produce a boy who doesn't fit his own culture?
All 3 of mine have always been called 'kind and caring' throughout school. It doesn't mean that they don't have typical 'boy traits'.