The n-person subgame Nash equilibria come from simple environmental constraints - the sheer number of people in India or China and the number of available seats

The n-person subgame Nash equilibria come from simple environmental constraints - the sheer number of people in India or China and the number of available seats in your commuter subway. The cost of not cutting the line is proportional to the number of participants. I'd argue it's a very different experience in say, Newcastle, UK where trains are historically on time, predictable, not as crowded, as opposed to trains in China being unpredictable, late, etc. And, re: culture, well game theory tells us that free-riding is a learned outcome of repeated games. Singapore gets its past learning from a hundred years of British colonialism.