Do you really not see the difference between having to pay for a service and having to upload biometric data in a centralized database under someone else’s control?

For one, I don’t have to buy a ticket. Many theaters participate in programs where you can get a ticket as a reward for other activities (credit card points, eg). The ticket sale is determined by the theater, and is not part of a government supported scheme to prevent some people from ever seeing a movie in any theater, ever.

Finally, the sale of a ticket is necessary for the operation of many movie theaters. It is intrinsic to the business model. The nightclub could operate the service, and even work with ban lists without the centralized biometric database.