> Which is why I suspect the obsession of education around the world with biological classification dates to the period where most people lived in the country, not in urban spaces.

Honestly, I would be surprised if that "obsession" has been around for nearly all of humanity's existence. If you're a hunter-gatherer (or even just hunt or gather to add variety to your diet and for medicine), being able to classify the biological world in some detail is an essential survival skill.