Here's why:
* Conflict: The protagonist's struggle is the source of the conflict in the story. Their desire, goal, or need creates obstacles and challenges they must overcome.
* Growth: The protagonist's journey is often one of growth and transformation. Their struggle forces them to confront their weaknesses, make tough choices, and ultimately emerge changed.
* Reader Connection: The protagonist's struggles and emotions resonate with readers. We identify with their challenges, share their triumphs, and are ultimately invested in their fate.
While other characters may play important roles in the story, the protagonist is the one whose journey holds the most weight and whose actions drive the narrative forward.