The unfortunate reality for many Rust fans is that a lot of people would prefer to use a less complicated language when performance doesn't matter.

That Rust program you spent a day golfing to make beautiful use of iterators? Your friend wrote it in go in 15 minutes.

They also get static types, good dependency management, and singe executable deployment. Cython + mypy basically gives you that with Python.

I don’t know why this would be an unfortunate reality. People should use whatever language they want.

Rust gives you a lot of ways to express yourself, but now that I am quite familiar with it, I can write Rust just as quickly as I can write Python or Go.

You can spend all day code golfing in any language.

Yeah, Rust is a really fun language to write in my opinion. If your use-cases are tolerant of non-hyper-optimized Rust, there’s no reason to make it too hard on yourself while you’re learning. As you use it, I think you’ll naturally gravitate towards writing more optimized code, because the language guides you in that direction.