Conversely, I would stop using Go in my projects if it introduces generics.

If Go wants to be more sophisticated, there are other sophisticated languages I can use out there like Haskell, Rust, F#, Scala, etc. The problem I have learned in my career is "sophistication" usually gets in the way of getting things done because now you have all these clever developers full of hubris creating these novel implementations that nobody else in the world understands, and your project fails but hey -- at least you have a dope, terse, generic implementation -- totally rad.