Whether you need to enable the Freereturn service on AliExpress should be decided based on your personal business situation. Enabling this service may bring the following advantages:

1. Increase buyer trust: The Freereturn service shows that the seller is willing to bear the responsibility for the shipping cost of returning the goods, providing more protection to buyers and increasing buyer trust.

2. Improve sales conversion rate: With the Freereturn service, buyers are more confident in purchasing and are more willing to try new products or new sellers, thereby increasing sales conversion rate.

3. Provide better customer service: The Freereturn service can help solve problems in the return process, provide better customer service, meet buyer needs, and enhance buyers' favorability towards sellers. However, enabling the Freereturn service may also bring some challenges and costs:

1. Increased costs: In order to bear the shipping costs of buyers' returns, sellers need to pay extra for the transportation and return of goods.

2. Manage the return process: Sellers need to invest more time and energy to manage the return process, including receiving goods, checking product quality, refunding, etc.

3. Potential abuse: Some buyers may abuse this service and intentionally or unintentionally return products that do not require a refund for shipping, causing losses to sellers. In summary, whether to open the Freereturn service requires a comprehensive consideration of your own business situation and the importance you place on buyer trust. If you want to provide better customer service and increase sales conversion rates, and have sufficient financial strength to cope with potential costs and risks, then opening the Freereturn service may be a good choice.