Answer: Because by the end of a story you have to provide a resolution to the conflict.
Explanation: A story can be said to be devided into four parts: exposition which sets the story, including places, characters and the plot. Then there is the conflict, which is the action or problems the characters get into. Then the turning point that will give the outcome and finally the resolution of conflict that happens at the end of the story and it is essential for the story.
