I see it more as like understanding how to use a hammer even if most of the time in your job you use a nailgun. For me personally it's a classic old timer habi

I see it more as like understanding how to use a hammer even if most of the time in your job you use a nailgun. For me personally it's a classic old timer habit from the days when you had to be prepared to fix a system using only the tools in /sbin. That doesn't mean you should operate like that all the time, but you should certainly know how to do so and be comfortable doing it.