Hi Bond, James Bond,
Were you diving of a SoCal boat? The SoCal boats I dive off of use the "water taxi" model for litigation defense. On SoCal boats, you the diver, are responsible for yourself once you hit the water and they don't interfere with your decisions--good or bad. They provide a surface swimmer and a diver on stand-by who is ready to recover your body from the bottom.
I don't know why, but SoCal divers are very good and responsible. They all dive fairly well (as an averaged group). Are they better or are they just responsible for themselves? They all find their way back to the boat.
In other places, the dive op lives under a different set of laws/rules. They do check for certs and many don't allow solo diving at all. The Solo Police nabbed me while diving off Miami. The Solo Police put me on strict supervision for my remaining dives. Once you board one of these boats, you become their child and their responsibility (they must be good mommies, or democrats).
markm