Comment by seanwilson

We probably work on different kinds of projects and/or different kinds of teams? I'd rather have the majority being end-to-end/UI tests than unit tests most of the time because you're not going to know if your app or UI is broken otherwise. I tend to work in smaller teams where everyone is experienced, and use languages with decent type checking.

It's very possible to write great software without any tests at all too. It's like people forget that coders used to write assembly code without source control, CI, mocking and all that other stuff.