Speaking for myself: one reason would be because it's one of the things LLMs/tools like Codex are the most useful for. When I have a smallish application, with

Speaking for myself: one reason would be because it's one of the things LLMs/tools like Codex are the most useful for. When I have a smallish application, with tests, written in one language, letting an LLM convert those files into another language is the single task I'm most comfortable handing over almost entirely. Especially when I review the tests and all tests in the new language are passing.