I'm always supportive of masking, but I forget to mask a lot because I'm forgetful. I especially mask in high risk areas, but only because I take lots of precautions against forgetting that just aren't practical day to day. I could do better, maybe, if I ever get proper treatment for my ADD.

I could even accept mandatory masks, but it only makes sense if the orgs have enough resources to provide them for everyone. Turning willing people away because they forgot is a great way not to have anyone at your event.