There are a lot of things you will learn as you dive ... among them will be that diving is a very situational activity, and there are few hard and fast rules that apply under all circumstances. Your "no touching" article has, I believe, good intentions if you limit it to the examples you mentioned or pointed out. But it does not apply in a large variety of circumstances.
And how would you respond to an animal touching you? It does happen, you know. As my friend Derek here found out, sea lions can be a lot like dogs ...
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Last year I was literally pushed by a whale shark in the Philippines. I was on the surface, taking a picture of another whale shark and had inadvertently gotten between this one and the food the people in the boat were dropping in the water. One of the boat guys started yelling at me to keep my distance ... but I wasn't the one who was moving, or touching. I pointed to the 25-foot critter with his snout against my hip and said "tell HIM!"
And then there was the oceanic white-tip I almost landed on when doing a giant stride off a boat in the Red Sea ... I literally had to use my camera to fend the thing off. Would you stick to your "no touching" rule if you had a shark pushing into your torso with its nose? Me neither.
I applaud your efforts to educate your readers ... and encourage you to continue doing so as your diving experience improves. But do try to keep in mind that rules of thumb are little more than easy ways to remember how to keep from getting in trouble ... and always have some caveats applied to them that you learn about as your diving experience expands to garner a broader understanding of why they exist.
... Bob (Grateful Diver)