What must be enabled to allow guest checkout in Magento?

To allow guest checkout in Magento, the Guest Checkout option in the admin configuration must be enabled. This setting directly permits customers to make purchases without creating an account, simplifying the process for new or occasional shoppers. When guest checkout is enabled, users can complete their transactions by providing minimal information, such as shipping and billing details, without the need to register for an account.

This feature is significant for improving the shopping experience, as it reduces barriers to purchase, particularly for first-time shoppers who may be hesitant to register. By focusing on ease of access during the checkout process, businesses can potentially increase conversion rates and improve customer satisfaction.

The other options do not directly correlate with enabling guest checkout. Registration for all customers would limit the ability to check out as a guest. Payment method restrictions pertain more to the types of payments accepted rather than the checkout method itself. Store view settings also do not specifically control whether guest checkout is allowed but rather how the site is presented to users based on the store view selected. Thus, enabling the Guest Checkout option in the admin configuration is the correct and essential step to facilitate this feature in Magento.