Wow?! Which agency is certifying 10 yr olds...?!
Most agencies are now - with much controversy.
A 10 year old will need a private DM almost without exception due to depth restrictions. The only exception would be if the family has a privately chartered boat and all agree to stay shallow. Even then, I STRONGLY encourage a private DM to be dedicated to the child. Emergencies can happen to the BEST of us - (ie: blown hoses, equipment malfunctions, unpredictable currents, etc.). How well can your 10 year old manage an emergency with his own mother or father. These are the kinds of things so many people don't think about. Sure many 10 year olds can go through the motions and can get through the skills - but practical application of these skills, as a brand new diver is an entirely different ball game for ANY new diver, let alone a 10 year old.
Just noticed this thread is from 2007????? Still good info!