[epicgiga]

DRYing the code is just an entry level form of simplifying the code. It's a good starting point, but its value quickly taps out once junior devs start writing incrementByOneFromZeroToNLoop(n) functions.

Code is closer to a craft like carpentry than a pure knowledge job. There aren't any rules, only heuristics, and it takes time to hone your skills (not "learn" them).

The biggest limiter in this is the excessive tendency for flat hierarchies in dev. It flies in the face of the apprentice - journeyman - master system that has always naturally structured the delivery and learning of craftsmanship.