Just to be clear, typically the graduation mass (“Baccalaureate Mass”) is just another event in a very packed graduation weekend. It is not graduation itself. (Mass is on Sunday, commencement on Monday.) E.g. https://www.bc.edu/bc-web/sites/commencement/schedule.html (I would fully assume that significant numbers of people will be milling around campus or getting lunch someplace instead of attending that particular event.)
Same for orientation https://www.bc.edu/content/dam/bc1/offices/Mission-Ministry/FYE/PDF/Parent%20Booklet.pdf