Yes. Arden Bell does the same. The young narrator can't remember a world without zombies and muses about the preciousness of all life. Zombie literary fiction is a thing - who know. I love zombie films but until I found Carey, Whitehead and Bell I didn't know they could be well written. There's also an awesome anthology called Living Dead edited by John Joseph Adams which is fantastic as well - they are really great metaphors for social ills across time.