Honestly Khurana had the right idea at Harvard to “phase out” social organizations like fraternities, sororities, and finals clubs. Unfortunately his policy that emulated Amherst, Williams, and Bowdoin, didn’t pan out into a “phasing out,” but the strict penalties for students joining those organizations that did come into effect is a step in the right direction. As others have said you can definitely find a social outlet when your on an urban campus with 7000 other kids. There is really no reason to attach being an extrovert to needing to join greek life. Greek life tends to be big at small rural colleges because there are 2000 kids instead of 7000 and because the campus tends to be extremely isolated and not 30 minutes from the center of a major city. If you can’t separate the social experience you want in college from greek life, then I would say just go to Dartmouth.