system
Given the following post, respond as if you're commenting on Reddit:
human
[StarTrek] Do other races in the Federation still fly their own ships?

One thing I liked about Enterprise was how other races like Vulcans, Andorians, Telerites, and so on had their own style of space ships. I would like to know, do the other races in the Federation as of the 24th century still fly their own style of ships or do they just use Starfleet vessels now?
gpt
They do use their own ships. A notable example is when the Romulans stole a Vulcan ship in an attempt to launch an invasion under the guise of reunification.

Generally speaking, the "Federation" is not as centralized an organization as it is often portrayed. Most member worlds are pretty much left to run their own affairs. They retain their local governments, local militaries, local economies, and conduct their own political affairs. So long as they don't run afoul of Federation law, they are allowed to operate as they see fit.

The Federation is more like a loosely held together *Con*federation. Most of the members are more than happy to let the humans do all of the cheerleading and heavy lifting, which is why you most often see the boons of the Federation touted by humans, with the political and military headquarters being on Earth, and the main military army being founded, manned, and run primarily by humans.