They are just doing what is needed so that they can have fans in the arenas and complying with the rules given.
You can basically say this for any event. I don't think my local ballroom wants to check people's vaccine cards for the concert tonight, but it's what's needed so the tours can safely happen and everyone can stay in business as well as comply with local laws.
Yup. They're coerced into doing it. Meaning if there were no consequences that dealt with the business, they would not require mandates. What their concern is for is their profits and losses. And so, the wise choice in being dealt this type of ultimatum is to comply or risk dealing with profit losses, and being charged a fee for not complying. It's not for safety, although that is a great selling point for a businesses now as people would feel safer and visit a place that requires and is enforcing the mandates.
Same thing Obama did with Health Insurance, by punishing the people with their taxes if they didn't comply with the ultimatum of the required mandated health insurance for all plan.
I have noticed a difference in those who do care and those that do not and the customers reactions as well. It's interesting how that fear shows, and the business workers and owners notice it as well. They notice the difference in reaction of the customers, and the interaction of the entire environment of the business itself.
How I noticed what type of business feels what is based on the type of signs they have on their door about the mandate requirements. Some you can see do not care at all based on their wording and phrasing of the mask mandate or the vaccine requirements.
But these are not laws. They're orders that expire once the pandemic is not declared as an emergency. These orders have not went through the legislative process, which is how the Untied States of America operates.