Re: Living this dream in my workplace right now...
I would imagine that it’s not an unwillingness to learn something new , just a judgement on the effort vs value of learning Rust in particular. Rust is new, not widely adopted, and as a kernel language unproven. Compared to applying that time and effort into improving the current C++ code, it’s not a given that learning Rust is of value ton Linux kernel dev.
The push for incorporating Rust code into the Linux kernel seems to be as much ( if not more) about promoting Rust as it is about improving the Linux kernel.