Page objects are a design pattern used in UI automation to abstract interactions with elements on a web page into a single functional unit. They can simplify test code and reduce duplication of effort by encapsulating repetitive interactions, such as logging in or navigating between pages. A suitable page object should only contain methods for interacting with the HTML page or component, and does not have to be an entire HTML page. The use of page objects depends on the specific testing needs and the complexity of the application, but they can be a valuable tool for UI automation, especially for end-to-end tests. However, their value may be minimized if there are few UI tests, and alternative testing approaches such as unit tests, component tests, API tests, or visual tests may be more efficient in that case.