I believe that socioculturally men are taught that discussing trials and tribulations is a sign of weakness. Even if a man doesn't actually believe this, the formative training of his upbringing shapes how he interacts with others regarding his experience.

For example, I am a man who rejects society's model of strength and masculinity and yet I find it exceedingly difficult to share all that is going on within my mind most days. I have taken in too securely the idea I should be able to deal with things on my own. We have been taught, whether we were good students or not, that we don't share our problems.