I’d actually suggest the opposite. It’s much less nerdy than say VIM or emacs, and is easy enough to use. I don’t know of any text editor that doesn’t require hours of investment (or a slow trickle over months/years), and I don’t think it’s even really possible unless you use something like Xcode that is just so constrained (and even then you’ll remap keyboard shortcuts, etc). Text editors are a key part of people’s workflow, and everyone will have different needs or have been “brought up” in a certain style/configuration. Some are more mouse based, others are more keyboard driven, some require a certain toolbox, others are more basic in needs. Then add in different languages, project complexity, version control, project management software and styles... there’s too much diversity out there to have a one-size-fits-all approach.