This whole mask thing sounds a lot like trying to get students to wear their goggles over their eyes in chem lab. I probably spent hours over my career asking students to wear goggles, wear them over their eyes as opposed to on their foreheads or around their necks, explaining how to adjust the goggles so they they didn’t fog or leave (the horror!), marks on their face after lab, handing out goggles to students who forgot them, and explaining that they needed to wear goggles even if they were “just” cleaning up or were done with their experiment but others were still working. At one point in grad school I completely lost my voice and got through teaching a lab by carrying around a sign that said “wear goggles.”
What worked to get students to wear goggles and leave them on? 1-Taking points off–a lab citizenship score from which points were deducted for, among other things, not wearing goggles. 2-Students knowing that I meant business about it. 3-Being consistent with having students know they had to wear them at all times whenever anyone in the lab was working with chemicals.
I have heard that mask compliance has been good based on reports from friends who have shown. I have not been to any shows to observe in person because my horse is re-habbing yet again and the local shows aren’t allowing casual spectators, at least in theory. One management group allegedly allows only one parent of a minor child–no owners who aren’t showing, no parents of adult children, etc.