I have a theory I want to share and get some feedback. It's been my experience seeing a little 4-5 year old girl fall, skin her knees and cry most parents or care givers will pick the child up hug her and sooth her with reassuring words. But if the child is a boy and the same thing happens he is told to not cry to buck up and be a man. That only sissies cry. Now my theory is because for generation boys have been taught not to show or give in to their emotions and for generations men have been much more violent then women, they're more likely to abuse a spouse or girlfriend, there are more men in the prison and jail systems than women, etc.
Now would this be the case if boys were allowed as children to cry or express 'mushy' emotions instead of always being told 'boys don't cry'. And yes I do know testoterone plays a part in the way men deal with things.