What documentation is required for a no-ticket passenger wishing to purchase a ticket with cash?

A government ID is required for a no-ticket passenger wishing to purchase a ticket with cash because it serves as proof of identity. This requirement is put in place to ensure safety, security, and proper identification for travelers. Carrying an official government-issued identification card helps to verify the passenger's identity and age, which is important for ticketing and boarding processes.

Social security cards, while they may indicate a person's identity, are not generally accepted as valid forms of identification for travel purposes. Student IDs, though they can serve as identification, may not have the requisite level of authentication or acceptance needed by transportation authorities for purchasing tickets. Lastly, not requiring any documentation could lead to issues with identity verification and tracking, which could pose a risk for the railway service. Having a government ID helps maintain standards of safety and compliance with transportation regulations.