(Lindsay D'addato | The New York Times) A group of Grinnell College, Iowa, students in the dining room of their own off-campus housing group in Salt Lake City, Aug. 25, 2020. As the fall semester begins, many college students will be attending classes from the relative safety of their family homes, others have arrived to live on university campuses, and some students are pursuing a third option: Renting giant houses with friends — sometimes in far-flung locales — and doing school remotely, together. Call it the rise of the college "collab house."