If one student has a cold, the flu, or covid it could be spread to all the other students and all the drives must be rescheduled. Masks help prevent many airborne illnesses including the common cold. Masks are required under all circumstances even if the student has been vaccinated, has sever anxiety, or simply doesn't want to wear a mask. Students usually forget they are wearing a mask while driving. I forget I'm wearing one.
The instructor wears a mask at all times.