Maybe it's because I'm living in a latino country, but it certainly seems like men start with too much confidence since teenage years, and slowly brings it down so everyone stop calling them arrogant, then there is their appropriate level. While for females (again, at least here in this latino country) it's the opposite, they start off being super humble and careful, and while growing up gaining more and more confidence until finding the right level.
Of course, this is a broad generalization, but seems to fit where I'm living right now, but it's all anecdotal as it's based on my own perceived view of things of course.
Sounds right in line with my experiences and exposure to the "Machismo" portions of many Latino cultures. I always brought this up to my far leftist friends who tried to pretend that the cuban revolution was somehow good for the LGBT minority of Cuba. LOL you think that they abandoned machismo just because they got a hammer and sickle? They call queerness "capitalist decadence" there...
Of course, this is a broad generalization, but seems to fit where I'm living right now, but it's all anecdotal as it's based on my own perceived view of things of course.