Final answer:
The TRICARE Retired Reserve program is not exclusively for retired reserve members under the age of 60, making the statement false.
Step-by-step explanation:
The TRICARE Retired Reserve program is indeed designed for retired reserve members, but it is not limited to those under the age of 60. This means that the statement is false. Individuals who are part of the Retired Reserve and are under the age of 60 may be eligible for the program; however, the program is not exclusively for that age group. TRICARE offers a range of health care plans for different groups including active duty military, retirees, and their families.