Things Fall Apart

In Things Fall Apart one of the things that surprised me was that Okonkwo isn't caring. Despite it being explained that he despises anything his father did or believed in and that affection was one of those things, I thought it odd that he doesn't show his family positive attention when supposedly his father gave him very little. Unoka was a low-life in Okonkwo's eyes, but just because the man valued tenderness, Okonkwo refused to allow himself that. I feel as if Okonkwo would be better off and less insecure if he was open enough to share his fears with those around him. Considering the culture though, it may be seen as a weakness to share those fears with his family. Or is it just in his head where such a thing is so big a weakness? It's hard to tell whether he is incapable of sharing his emotions or if he just refuses to in efforts of being the opposite of his father.