Why didn't anybody attend Gatsby's funeral? Why was it only Nick there? Why didn't Jordan, Daisy or Tom come?

Gatsby funeral was only attended by his one true friend. Everyone else, the people who enjoyed his parties, did business with him, or even those who simply used him for somewhere to live were nowhere to be found. They didn't want to be seen, involved, or connected. Tom and Daisy didn't attend because they's already hightailed it out of town.... Jordan was in Southampton.