The author's main concern, as stated in the final paragraph, is that 'our innate abilities, such as our sense of direction and spatial cognitive skills, will atrophy due to excessive reliance on technology.' The passage also emphasizes that this leads to a more passive (受動的) relationship with our environment, where we no longer 'proactively build a relationship' (主体的に築き上げる). The correct answer encapsulates these two key points. The other options touch on related but secondary ideas (loss of discovery), ideas not mentioned (cultural value of paper maps), or practical issues not discussed by the author (accuracy and danger).