" Some students choose double majors in college not because they’re trying to prove something or because they have some grand plan for a career integrating, say, political science and biology. Rather, they just can’t bring themselves to say no to either option. To choose a single major is to pronounce judgment on the other and kill it off, and there’s abundant research showing that people have a hard time giving up options, even when the options aren’t doing them any good. "

― Roy F. Baumeister , Willpower: Rediscovering the Greatest Human Strength