Vim is basically the only editor you can safely assume to be available on any machine you’ll ever interact with. In my opinion, this fact makes it a requirement

Vim is basically the only editor you can safely assume to be available on any machine you’ll ever interact with. In my opinion, this fact makes it a requirement for virtually any developer to be able to confidently use vim during a production incident to, say, fix a broken config file while being connected to the machine through (multiple hops of) SSH, without any ability to use your editor of choice. Once this basic-but-crucial skill level is mastered, using vim more proficientely as a daily driver is entirely a matter of taste. Personally I prefer using a fully-fledged IDE for anything that goes beyond a simple script.