Colleges don’t have to be need blind for admssions - they choose to be. The admissions people are’t trying to figure out who the poor students are and targeting them, unless it is through a program like Questbridge. An address in the Hamptons doesn’t mean you are rich as some of those residents are the service people for the rich, the shop owners. My kids went to schools with the children of millionnaires and kids on public assistance - couldn’t always tell by the address of zip code.