My high-school only had 2000 students, and elementary/middle school had only a fraction of that. Surely a lot of us work on campuses / office complexes that ha

My high-school only had 2000 students, and elementary/middle school had only a fraction of that. Surely a lot of us work on campuses / office complexes that have more than 2000 office workers? If we have bus systems that can effectively serve ~500 person elementary schools or ~300 person elementary schools, surely we can serve a 5000-person office complex with some kind of mass-transit option?