We were recently diving Coz with our 13/15/16 yr olds. I think the bottom line is that you should first decide what depth you are comfortable having him go, then talk to the dive op and get their opinion. There's so much to put into that decision - how much experience, how many drift dives, how mature (mentally), how mature (physically), etc.
We kept most of the entire week (12 dives total) to 60' max, but my 14 year old son probably saw 68' on a dive or two. The DM led the dive, followed by the kids, followed by my wife and me. Watching my kids, I felt like I had a decent evaluation of their skills and decision making underwater. We also had a "family meeting" type discussion on the plane down there. Things like "diving should be fun, but no screwing around, etc."
I also quizzed them on some of the key safety aspects of diving and a lot of "what would you do if..." questions.
One dive op said that if we wanted to keep all dives above 60', then we should also have a private DM (because the boat could be mixed with people that want to go to 100' or deeper.) We went with Aldora, and they were excellent in providing a safe environment as we had discussed prior to our trip.
We kept most of the entire week (12 dives total) to 60' max, but my 14 year old son probably saw 68' on a dive or two. The DM led the dive, followed by the kids, followed by my wife and me. Watching my kids, I felt like I had a decent evaluation of their skills and decision making underwater. We also had a "family meeting" type discussion on the plane down there. Things like "diving should be fun, but no screwing around, etc."
I also quizzed them on some of the key safety aspects of diving and a lot of "what would you do if..." questions.
One dive op said that if we wanted to keep all dives above 60', then we should also have a private DM (because the boat could be mixed with people that want to go to 100' or deeper.) We went with Aldora, and they were excellent in providing a safe environment as we had discussed prior to our trip.