An extremely pervasive cultural thing that will require a generation or two of self-reflection to refine what it means to “be a man”. It is not a gender thing because this definition of “manhood” isn’t present everywhere. Heck, even women here tell a guy to “be a man” which makes me want to scream “so being a woman means to be weak?”. “Being a man”/”being a woman” should both mean to be strong and responsible. “Machismo” is just false bravado because that man has nothing except his brawns.

http://www.cnn.com/2013/11/07/opinion/granderson-incognito-man-up/index.html?hpt=op_t1