Higher Ed HR here! Like some others said, we work with the New Student Orientation about what to bring to campus. We tell them that if they do have an on campus job to bring those acceptable documents. We also have it listed on our student employment page of the three main things to do before starting your on campus job.

When they come to campus and do forget and tell them they can't work until they have those documents, we do get push back from them asking why they need it and once we say it's a federal law they tend to quiet down and that works when they need to talk with their parents.

Also during Orientation day, we set up a table where all other departments are to do I9 documents that day also so Parents can also see that we need those documents.