Why would one want to lock overrides in the system?

Locking overrides in the system is primarily beneficial for protecting the integrity of certain critical data, especially during processes that involve potential data loss, such as bulk deletions. By locking these overrides, the system ensures that specific dates or settings remain unchanged and are safeguarded against accidental clearing or modification that could occur if multiple entries or deletions are executed simultaneously. This is crucial for maintaining accurate data for operations like booking or inventory management, as it prevents any loss of essential information that could affect overall system functionality and user experience.

The other options address different functionalities: allowing multiple users to edit would not relate to the need for locking, and expediting reservations or showing current availability focuses more on the operational flow rather than the protection of data integrity. Thus, the focus on safeguarding dates during bulk deletions distinctly highlights the importance of locking, reinforcing the choice made.