Final answer:
Cody was an important figure in Gatsby's life who taught him valuable lessons. Gatsby doesn't drink due to his experiences with Cody and his downfall caused by alcoholism.
Step-by-step explanation:
The subject of this question is English and the grade level is High School. In F. Scott Fitzgerald's novel, The Great Gatsby, Cody was an important figure in Gatsby's life. Cody was a wealthy copper magnate who took Gatsby under his wing when Gatsby was young and taught him valuable lessons about the world and success.
Gatsby doesn't drink because he witnessed Cody's downfall due to alcoholism and realized the destructive power of excessive drinking. This experience shaped Gatsby's perspective on alcohol and influenced his decision not to drink.