Final answer:
The purpose of the policy is to prevent a two-tiered system and ensure fair and equal access to healthcare services.
Step-by-step explanation:
The purpose of the policy that discourages hospital user chargers and extra-billing by physicians is to prevent a two-tiered system and provide equal access to healthcare services for all individuals.
By discouraging extra charges, the policy ensures that healthcare is provided based on need and not on an individual's ability to pay. This helps to promote fairness and equity in the healthcare system.
Additionally, by discouraging extra charges, the policy helps to control healthcare costs and ensure that resources are used efficiently.