I asked recently about the mask rules in airports, but in my travels recently I'm more baffled that private companies are requiring masks under threat of refused service, and even permanent refusal into the future. Primarily, I've noticed some airlines advertise their own mask rules that customers must agree to, and the taxi apps (eg Uber, Lyft) make you actually check a box "I am wearing a mask" before you can call a ride. Apparently I broke the rule add the driver pulled up, and he must have alerted the company, who in turn threatened to ban me permanently from their service if I did it again.
I personally think these corporate rules are dubious, especially when use of their services is in an area where no such government orders are in place. I figure there must be some limits on "dress codes" or other non-covid justifications they might come up with.
Under the circumstances, I understand why, but I've heard many times a judge argue in his jurisprudence that circumstances cannot justify any actions otherwise illegal, so thus laws would have to be changed first.
So, I expect eventually someone will sue a company over its mask rules, but what legal argument would they likely give?