My kid (9th grader) is in her first year on a travel VB team at The St. James. She did not pick up the sport until 8th grade (middle school). To be fair, the kid has been playing soccer since pre-kindergarten. She has six years of travel soccer (via FPYC) experience, so some of the development has likely transferred over to volleyball.
Since you are near/close to Springfield, I can tell you that they are hosting beginner clinics every Friday evening. I don't know if these sessions are part of a series (where you had to start at the beginning) or if you can just sign up for the next session.
https://www.thestjames.com/sports/volleyball
Looks like a new Tuesday series is about to start on April 18th.