Some airlines are actually becoming more restrictive regarding mask as international travel picks back up. Specifically, they are mandating specific types of masks (e.g. N95), not just any cloth mask that you want to use.
Aside from the general dislike of wearing masks for an extended period (recently flew Seattle to Washington DC and back - ~5 hrs. each way, plus mandatory masks in the airport - yuk), it's the view of masks as some sort of magic bullet that annoys me. Yes, masks help, but not nearly as much the politicians imply. One study showed mask use reducing transmissible of Covid by only 8%. Better than nothing, but not much...