Dolphins can be dangerous. I wouldn't swim with them, let alone let my boy. I am not saying you are being irresponsible. I am just giving you and everyone else who may see this a warning. I am glad he had fun though.
Great and worthwhile pic, just please make sure it's your last in that situation. They are beautiful but very strong, powerful and unpredictable. Again, great pic and I know your son will remember for a lifetime....let's keep it that way.
My thoughts are that it is more dangerous to scuba with baracudas or sharks in the area than to be in the water with a porpoise. We monitored the porpoise for 45 minutes before allowing the swiming with the mammal. I agree that there is always a possibiity that something may happen when scuba diving, snorkeling or swimming in the gulf. I think that my son was in no more danger than if we were scuba diving. Never ever would I place my children in a situation that I felt would harm them. However there are some hazards associated with everything you do in life. Reality is he has a greater chance of injury playing football than swiming in the blue water.
Man gotta love it! Maybe we should never let our kids out of the house, it's much safer. It's more dangerous swimming in the surf in Galveston than what he was doing. More than half the stuff we did as kids are thought to be taboo now days. I don't know how any of us survived our dangerous childhood!