To learn Vim you have to use it everyday. Question is if most have the opportunity to use it full-time for development from day one. I started with Vim using it just as a todo list manager on a remote server. Wrote here and there some macros to add or mark todos and that was my gateway drug. Used it everyday and at some point it felt more natural than any other editor. So I fully switched.
I 100% agree. I originally learnt Vim because I didn't have any choice. It was the only supported editor at my workplace, so I was thrown in the deep end, using it every day.
That kind of situation can foster resentment, but I embraced the challenge. I got use to Vim, and overall adopted a more "UNIX" approach to my workflow and development. I'm not all the way there, but I'm trying to embrace it more, little by little.
Besides, I use Neovim for 1-2 years now.