Well everyone 16 or older can sign up for a shot. You then wait for the appointment, get a shot wait 3 more weeks, get a second shot, and then wait 2 more weeks for full effectiveness to be reached. Around here when I signed up, there was a 2 to 3 week delay before the 1st shot. So would be 2 months from now that 16+ signing up today will have completed the process.
Boy I am so glad this thread is COVID and politics free.