Whereas the other around, porting a C++ program to Rust without knowing Rust is challenging initially (to understand the borrow checker) but orders of magnitude easier to maintain.
Couple that with easily being about to `cargo add` dependencies and good language server features, and the developer experience in Rust blows C++ out of the water.
I will grant that change is hard for people. But when working on a team, Rust is such a productivity enhancer that should be a no-brainer for anyone considering this decision.