Of course we barbeque a variety of things but usually the main course is hamburgers. Try it sometime. Active voice is more commonly used than passive voice . Active voice is more direct and assertive than passive voice . Using active voice places emphasis on the subject.
Passive voice places emphasis on the object.
Passive voice is used when the speaker doesn't want to emphasize the subject. Often, the object in passive-voice sentences is not included so the reader or listener doesn't know who performed the action. Lighter fluid is going to be used to light the charcoal for the barbeque. The reader doesn't know who is going to use lighter fluid, but the reader does know that lighter fluid is going to be used. Enjoy your summer barbeques and don't undercook your meat.