Willingness to try a language or framework is an extremely poor selection criteria for being able to use it well or even being willing to learn how to use it we

Willingness to try a language or framework is an extremely poor selection criteria for being able to use it well or even being willing to learn how to use it well. I've seen enough shit-ass Ruby or Kotlin or Scala from people who were like "awesome, I love learning new languages!" but never got past "oh, what's the fastest hack I can find to do this in a similar way to how I'd do it in the last language I used?"