I think your opinion simply reflects a degree of ignorance of nano's actual capabilities, rather than a genuine surprise at human behaviour. If anything, your comparison to gedit/notepad (notepad??? seriously???) makes that much clear.

Honestly I don't mind vim, but I prefer nano. And I spend 24/7 coding in my terminal. Nano covers all my needs and then some.

And while you should absolutely not switch vim to nano if you enjoy vim, I would totally encourage you to play around with nano a bit more. You may be positively surprised at what you find.