Why do users sometimes enable pop-ups on websites?

Enabling pop-ups on websites is often necessary because certain functionalities that enhance user experience are dependent on them. Many sites use pop-up windows for legitimate purposes, such as displaying login forms, confirmation messages, notifications, or additional information related to the content being viewed. For example, online banking sites may require pop-ups to complete transactions securely. In these cases, disabling pop-ups can hinder a user's ability to interact with the site effectively, as important features may not be accessible otherwise.

The other options either misunderstand the purpose of pop-ups or misrepresent the intent of users enabling them. While pop-ups can indeed pose security risks, that is not typically the reason a user would opt to enable them; it's more about facilitating certain site functionalities.