It is not difficult to obtain an AARP membership. Simply provide documentation of your age and pay the annual fee.
If you are beyond the age of 50, you will receive additional advantages from the program, but AARP is open for anyone to join.
They grant memberships to persons under the age of 50, and you may apply for one by following the easy procedure outlined above.
If you are under 50 you will not be able to take advantage of all the program benefits.