[exelius]

I would suspect it’s because even many of the core libraries are still written in Obj-C. Swift is neat and I really like it, but the ecosystem is such that even when using it on a new project you end up writing ~25% of your project in Obj-C.

[kitsunesoba]

Depends on the nature of your project but I can count the number of Obj-C libraries I’d be likely to use in my projects on one hand, and they all play secondary roles (e.g. analytics). For almost anything else Foundation/UIKit and third party Swift libraries would be used.

[rimliu]

This sounds extremely strange. Last time I neede to write Obc-C was early 2017. My current project started as pure ObjC, now there is zero lines of this in production.