All You Zombies

Why does the narrator call earlier versions of himself “zombies”?

When Jane completes the sex reassignment procedures, she adjusts quickly to the new orientation but struggles with the search for a job. What causes this situation? In your explanation, give reference to Jane’s job skills and how they interact with the cultural expectations of the era.

The author wrote the story in 1959. Is it still relevant to gender identity issues of today, or are its attitudes outmoded? Defend your viewpoint.