Phil..You tell 'em.
When my boyfriend and I go out to the reef in a kayak, we are smart and would not dream of going out without
1. Telling people where we are going and when we will be back.
2. We have life vests available for use.
3. Checking the weather conditions out first and this usually involves speaking with a tour operator/guide/boat captain type prior to heading out.
4. Going alone.
Two years ago, I was with a tour guide that didn't get into the water with us at all, told us to 'swim over that way, don't touch the reef.." etc, while he sat in a boat texting. About a million things could have happened.
Also, we were left on the reef by another operator because my mom couldn't get back into the boat because of her arthritis. They came back to get us and had we had been underexpeienced we would have possibly gotten hurt or not come back at all. We just stayed on our little sand dune and waited it out.
Oh yes, and our first experience diving left my mom and uncle swept out in a current the operator didn't seem to know about and they got picked up by another boat.
Yes, these are some very bad examples of poor professionalism, and we have had some AWESOME tour guides also.
But my point is that you can't legislate and license common sense.
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The best way to observe a fish is to become a fish
Jaques Cousteau