There are big limitations on what you'll be allowed to bring into the main graduation ceremony.
According to the "Family & Guests Day-Of Instructions" sub-page of the University of Arizona commencement web site, "Commencement 2016 will be enforcing game-day rules in which all family members and attendees must abide by the UA’s clear bag policy for entry into the stadium. No outside containers, large bags, backpacks, or parcels will be permitted and all in-hand items must be placed in the appropriate and approved clear bag." Then, that page has a link to "the UA’s clear bag policy" page that tells you that camera cases, binocular cases, fanny packs, mesh bags, purses, and every other sensible carrying method is "NOT ALLOWED". They tell you what IS allowed, and it ain't much.
Family & Guests Day Of Instructions | Commencement ARIZONA STADIUM POLICIES & PROCEDURES - The University of Arizona Official Athletic Site
So despite what you and other parents have paid for your/their children's education at the University of Arizona, at the main ceremony you'll be treated like criminals.
Hopefully, the college- and departmental-level ceremonies won't be so restrictive.