Not my experience at all. It's more like a) JS devs view NPM packages as a mark of pride and so they try to make as many as possible (there are people proud of maintaining hundreds of packages, which is obviously dumb), and b) people are lazy and will take a ready-made solution if it's available, and c) there are a lot of JavaScript developers.

The main reasons you don't see this in other languages is they don't have so many developers, and their packaging ecosystems are generally waaay higher friction. Rust is just as easy, but way higher skill level. Python is... not awful but it's definitely still a pain to publish packages for. C++, yeah why even bother.

If Python ever official adopts uv and we get a nice `uv publish` command then you will absolutely see the same thing there.

It seems in some large businesses code ownership is an issue too.

If you NPM import that's now part of your SCA/SBOM/CI to monitor and keep secure.

If you write code, it's now your problem to secure and manage.