In a world without names.
You are sitting in the doctor's office and the assistant comes out and says, "npub1ge0tzdqy6useekgu9d9g5l3s3t2wpx7p9xxuprz7ajzjaxl4mgyssejcs3 its your turn"
you write "npub1ge0tzdqy6useekgu9d9g5l3s3t2wpx7p9xxuprz7ajzjaxl4mgyssejcs3" on your homework.
Nobody gives their babies names anymore. They just create a public key for them until they are old enough to handle it themselves.
"have you met npub1ge0tzdqy6useekgu9d9g5l3s3t2wpx7p9xxuprz7ajzjaxl4mgyssejcs3? they went to Yale and have a PhD in astrophysics"