system
Given the following post, respond as if you're commenting on Reddit:
human
[Futurama]Why are most people referred by their last names?

Fry and Leela use their last names even in their most intimate moments. Is this part of 31^st century culture? If so, why aren't Amy and Bender called Wong and Rodriguez?
gpt
it's not 31^st century culture, trust me.

Fry's case is actually unique: He prefers his last name because Phillip is less comfortable to say. Phillip sounds clumsy and formal.

Leela's 'last name' isn't actually her surname, Turanga is. This is evidenced by her parents: Turanga Morris and Turanga Munda.

Professor Farnsworth and Doctor Zoidberg don't go by Hubert or John, but that's because of their titles.

Cubert, Kif, and Hermes, for example, also don't go by their last names (Farnsworth, Kroker, and Conrad respectively).