You must be at least 12 but not yet 19 to join as a cadet.
Expenses will be about $100 to get started in CAP. Depending on participation in activities and fees at your unit, you can expect to spend about $300 - $600 in the first year.
Cadets are never obligated to join the military, but 10% of all Air Force Academy cadets got their start in CAP.
Adult volunteers, fingerprinted and screened by the FBI, chaperone all cadet activities.