"Drivers must possess a state-issued driver’s license or a certificate of completion of an ATV Safety Course as provided in Miss. Code Ann § 63-31-3, except in an emergency situation.
No drivers may be under 16 years of age and all vehicles shall be operated in accordance with posted restrictions and regulations and in accordance with applicable federal, state, and local laws at each site."
Certificate of completion of an ATV Safety Course can be had at age 12.
Like Cray said, sounds like a bunch of old rules double talk.