I thought why not just complete the set, ne?
You know how you are suppose to write what you know? Well this may shock y'all, but I'm not a boy. So this is a topic I need to approach with a lot of RESEARCH.
My early research was severely handicapped. I have no brothers. My dad died when I was young. I DID have boy cousins, but they are BOY cousins... they would give you the idea every boy was... Rambo or something. At least when they were young, they were SUPER aggressive, rough and tumble, guns, war-play, hit-a-lot types... not with me—they knew not to hit girls, but they gave an exaggerated view.
The boys at school occasionally confirmed this—a couple were the same way.
Now I had a boy who was a close friend... his mom baby sat me... but HE was the kind of boy who used to argue with me about who got to be Pebbles... if you know what I mean. (a kid that looking BACK it is east to spot that by age 4, he was solidly gay)
Can you see why I was confused? The extremes and not many in betweens?
So I decided to research the matter thoroughly...
This took as many boys as I could possibly acquire and very careful examination. Here is what I learned:
Here... let me look up chest hair frequency... Hmph... all I'm seeing is Caucasians have more than black or Asian men, but among Caucasians it is more common with darker skin tones...
So there you have it... My knowledge of the Y chromosome...