They've been teaching C in universities for like 40 years to every Computer Science and Engineering student. The number of professionally trained developers who know C compared to Rust is not even close. (And a lot of us are writing Python because it's easy and productive, not because we don't know other languages.)
I think you'll find that C (and C++) are rapidly disappearing from computer science curriculums. Maybe you'll encounter one or both in Operating Systems, or an elective, but you'll be hard pressed to find recent graduates actually looking for work in those languages.
They've been teaching C in universities for like 40 years to every Computer Science and Engineering student. The number of professionally trained developers who know C compared to Rust is not even close. (And a lot of us are writing Python because it's easy and productive, not because we don't know other languages.)