This document provides 11 reasons why someone should not do a startup. It argues that many people pursue startups for the wrong reasons like wanting money or thinking it's cool rather than having a real passion for solving a problem. It also warns that starting a startup requires sacrifice, hard work, and dealing with challenges like creating a product customers want, building a team, marketing effectively, and dealing with difficulties that arise. The document uses strong language to emphasize the difficulties of startups and suggests people may be better off avoiding these challenges.