Are legacy admissions at public colleges a common thing? This is the first I've ever heard about the concept as I, perhaps naively on my part, assumed they oper

Are legacy admissions at public colleges a common thing? This is the first I've ever heard about the concept as I, perhaps naively on my part, assumed they operated formulaically as faceless bureaucracies. Input the usual suspects of grades and SAT scores, perhaps fudge it a bit with income and race, and pop out a score to sort the applicants.