The T21 Social Club is for individuals 13 years of age and above, who have been diagnosed with Down syndrome (and their guests). T21 events are designed to support and promote socialization skills and to simply have a great time with friends. Events include dances, parties, crafts, over-nighters, and more. Membership for the T21 Social Club is free. Complete the following application and return to T21 Social Club. Your member card will arrive soon thereafter.