The insurance company that PADI uses has recently changed underwriters, and there are some new requirements for training kids between the ages of 10-18:

• Written consent from parents or legal guardians is required for all kids
  
• Kids 10-15 years old: Parents or legal guardians must be present at the time of instruction, training or any PADI certified activity (on shore during the ocean dives, or on the pool deck during confined water).
• Minors are only able to dive with a trained PADI professional or PADI certified parent or legal guardian after certification
• A maximum ratio of 4 divers to 1 instructor is maintained