[lozenge]

Are you not interested in contributing to existing projects like Postgres, CPython... or being able to use the many libraries with C APIs?

[warabe]

Well, that sounds exciting, but I am a novice programmer from data science field. So, I am more like a user, rather than a developer.

Contributing to world class projects such as Postgres sounds cool, but doesn't it take years of experience?

Of course there are other benefit of learning C as you noted.