Nim might be great. But how can a great language get traction if nobody big is behind it?

Java and Python are being pushed by Silicon Valley and universities, Go is being pushed by Google, Kotlin is being pushed by Google, C# is backed by Microsoft and some big companies.

Who can help Nim, or Crystal, or Rust or other new language?

I look at many of them from time to time, see interesting developments, see exciting things but I refuse to learn the languages, their ecosystem and frameworks from the fear I have I will lose lots of valuable time since I might not be able to earn my living using them.