RCI does have specific criteria for membership, and one of the requirements involves age. Generally, individuals must be at least eighteen years old to become a member of RCI. This age requirement ensures that members are legally able to enter into agreements and participate in the exchange of timeshare accommodations. It is also advisable for potential members to read through the specific terms and conditions found on the RCI website to fully understand any additional requirements or stipulations that may apply. While this general age requirement is typical, individual resort properties or affiliations may have their own policies, so it is beneficial to check with them directly, as RCI provides information about membership and different resort exchanges online.