Comments of chapter undefined of Traveler's Traveling Companion

You do realize that geography isnt about rocks right? I'm guessing you might be younger then. Cause funny enough mineralogy and it's related fields arent a normal class, sure maybe an elective in some schools but definitely not the norm. (P.s. geography in highschool is about countries, cultures, and it's related histories, as well as environmental factors in relation to humanity, not about some random rocks and their properties.)