Careful with generalizations like that. You're forgetting the most important reason anyone uses a language:
It's the one they know.
A C programmer isn't automatically going to switch to Rust for new projects that they would use C for, unless their goal is to use Rust.
Re:C’s Biggest Mistake (2009)
by tonyarkles on Sunday September 13, 2020 @07:37PM
(#24464870)
Lol C programmer since 1994 here... just started a Rust project with the specific goal of learning Rust. The project itself is just to scratch my own itch. I’d honestly probably write it in Python if I didn’t want to see what Rust was all about :)
C is also used a lot in embedded environments where the hardware won't support languages with a larger footprint. Quite common in my line of work.
Nobody would do a project in C today with Go/Rust/C++ etc unless it's for a very specific situation