I am struggling to find any benefit of Rust for startups to be honest. It makes no economical sense to be bogged down by a language that is 3-10x slower to develop. The issues Rust is preventing will pop up earliest in production, likely rarely and at that point in time the company could be profitable, its product somewhat stabilized and actually have a case of using Rust for an internal rewrite.
Where do those numbers come from?
Rust is not very beginner friendly and takes a while to learn, but nowadays I'm just as fast in it as in other languages, except maybe for Python.
That said I also don't think it makes sense for startups.
