Why is Jonathan so happy that his family has five heads on their shoulders in Civil Peace?

In "Civil Peace" by Chinua Achebe, Jonathan is grateful for his family's survival and resilience after the Nigerian Civil War, which is symbolized by the "five heads" on their shoulders. This phrase represents the unity and strength of his family, emphasizing their ability to think, work together, and face challenges collectively. Jonathan's happiness stems from their shared determination to rebuild their lives despite the hardships they have endured, highlighting the value of family and hope in the face of adversity.