My policy was in effect long before any of todays theaters ever tried to change the rules. I frankly have no idea if my theaters would not want me to or not, like I said, nobody ever said anything. If we dont like the beginning, we go to the next one.
Anyways, I sure didnt see any "no switching " signs. My policy has been that way for decades, if any movie theater is trying to institute a new policy of no switching, then it had better make a very big sign stating so.
It also should have a satisfaction guarantee policy to go with it. There are few businesses which do not guarantee satisfaction, and if the movie theaters want to start stopping people from switching, theyd better come up with a money back guarantee .