What is the theme in Nervous Conditions by Tsitsi Dangarembga?

Coming of Age is the main theme of the book.Tambu is a young child at the beginning of the story, but she is very mature because of the requirements of her situation. From a very young age, she takes on responsibilities for her sisters, does an extensive amount of labor and worries about her family, especially her mother. The fact that she is responsible isn't unique to Tambu because her younger sister takes responsibility for caring for a younger sister while Tambu and their parents are in the fields working.