I have a searing eye dog. We travel quite a bit. Here are my thoughts.
1. I have an ADA identification card that I am asked to provide proof of, even when my dog us wearing his guide dog harness
2. These dogs are trained to hold their bathroom duties for hours, and you are trained as a responsible owner to always use the correct "facilities" the use of a potty pad in public makes me sick. If a blind person can manage to find and pick up their dogs #2, you can find the dog potty area. There are set aside areas for this need!
3. I travel to Florida quite often, but I leave my dog in the comfy air conditioning. I use my cane or my children as my guide. I would never risk his safety by burning his feet or overheating just to take him to a park where he would be mauled by people, scared by loud fireworks, and left in a kennel while I rode a ride. This is irresponsible pet care.
4. The dog in the pool is just ridiculous. They should have been kicked out of the resort and that person should not be aloud to own a "therapy/service" dog. I would have reported them to a manager. Use your in room bathtub if your dog is hot.
5. Those teaching your children never to approach a working animal YOU are correct. If my dog was distracted by children I could run into something. Never let your child approach an animal, even if we are "just" sitting at a bench. Please don't ask to pet my dog, if one child sees your child petting him, they will approach in droves. It is hard to tell a child no, especially when the parent has already started petting.
Many people do not respect service dogs and their owners, this thread is a reason why. I had to be trained for 4 weeks before I could bring my dog home. One week of that training was public behavior and "rules" of society.
Feel free to ask any questions.