Acculturation to bourgeois and haut bourgeois norms depending on the college, for elite colleges a way for the rich and those highly likely to be professionally successful to associate to the benefit of both, a way to launder IQ tests (the SAT and ACT), a four year holiday and networking opportunity, an entree into better jobs, a way to get the public to subsidise research they don’t understand. College has many purposes, just like school. They share the sorting and ranking function but for college there childcare one is much attenuated.