Final answer:
A buffet is not always self-serve, as there are also staff-served buffets, making the statement false.
Step-by-step explanation:
The statement that a buffet is always self-serve is false. While many buffets are set up for self-service, where guests select and serve themselves from a variety of dishes, there are also staff-served or partially served buffets.
In these cases, guests may serve themselves for some items, while for other dishes, especially those that require slicing or are particularly hot, a staff member may serve the portion to ensure safety and presentation.