system
Given the following post, respond as if you're commenting on Reddit:
human
[Starcraft] Why can't/don't zerglings mine minerals or become evolved to do so?

Is there some reason Drones are superior to Zerglings in any aspect besides being able to morph into buildings? (Using in-game mechanics, they do about the same amount of damage, and zerglings move and attack faster and even hatch in pairs. I doubt that naturally occuring minerals are tougher than e.g. marines' battlesuits. What gives?)
gpt
"Wasteful to spin unnecessary adaptations. Complexity bad."

The Zerg are all about efficiency and specialization - the drones are designed to be the most efficient at mining and transporting minerals as possible. They don't need to fight, they've got zerglings for that. Likewise, the zerglings are designed to fight, adding adaptations that would allow them to mine efficiently is a waste, because they've got drones to do that.