You are confusing culture and physical environment. People don't only spontaneously 'learn' about how to get around a space they happen to be dumped into. They are inculcated into a culture. There is a depth of accumulated knowledge and engagement with physical reality in rural cultures (especially, but not only, indigenous ones) that is largely absent from urban cultures. There are good reasons for this (relative differences in cultural longevity, role specialisation, population mobility, navigational complexity of environment etc).