Harry Triandis have once said that one of the borders between cultures may be established by measuring Individualistic versus Collectivist approach.
Asian societies are collectivist by their inner essence. They will stand up for the common goal of the groups they belong to and as well they would never like to be a burden to the group.
This leads to situations when they are left alone with their problems putting smile on their faces. Does it mean they won't speak out? They will. My friends do trust me.
But whether they shall acquire any support from other members of the group, that is different issue...
Recently I have experienced that. One of my friends wanted to leave the job and go away only not to become a subject of the other's pity. It took a while to convince this person not to do so.