The conversation between human and AI assistant.
Why did Darth Vader step on Obi-Wan's robes after killing him?
Did Obi-Wan expect to die when he faced Darth Vader?
Yes, Obi-Wan made the choice to sacrifice himself in order to allow Luke and the others to escape the Death Star. He knew that he had a greater purpose and that his death would ultimately contribute to the defeat of the Empire.