'Registering For Draft' Isn't the Same Thing as 'Getting Drafted'
Under current U.S. law, anyone who was born a man and is currently between the ages of 18 and 26 is eligible and required to register for the draft. Once you turn 26, you are out of the draft.
The U.S. military has not used that list of names to call people up for military service (i.e., drafted them) since the Vietnam War, but in the case that a draft is reinstated, the U.S. needs a list of everyone eligible for service to determine who will actually be called to serve. That list is maintained by the Selective Service System and theoretically contains every man eligible for service, between the ages of 18-25. When you register for the draft, you put your name on the U.S. government's list. That's it.
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