I guess I really feel more pity for this poster than anything else, since her family will never experience the feeling of sittng by a fire, with a dog curled up at your feet, who is gazing up at your face with unconditional love.
*************
Some people just don't want to own a dog, and I think she was nervous about any uncontrolled dogs that may be around. Some people don't take responsibility for their dogs, and let young children, who can't handle them be in charge of the dog. Sometimes, that is not good. While most dogs are harmless, there are dogs who are not...and for that one in several hundred, it's hard to know in advance which it would be...and someone with a fear, doesn't want to take that chance. I'm sure your animals are sweethearts, but not all are, unfortunately. I love animals, and there are some that would be brought into our practice, that made me nervous. The owners always start out with..hey, don't worry, he'll never bite you. Some of those have been brought back in because they did bite someone.
Working for the SPCA, I'm sure you have seen what I have seen. Dogs brought in to be put down, because they have been out of control and injured a human. While it may ultimately been the humans fault for not training the dog, or not treating it right, there are, as the poster said, some dogs, more agressive than others, and those seem to be the ones adopted or bought by people who do not train them or treat them right. I love animals, and have had many of my own "saves", but I certainly understand someone's fear of animals. They don't have to fear the Mickey Mouses and Plutos, since those are cartoons, and not real. I think it's only fair that we understand that not everyone likes "real" animals, for all different reasons, and may just want to know if she/he will be around them.
While it's good that you teach kids to not be afraid, and to lessen their chances of being bitten, in our area (and many other areas), the kids where not doing anything wrong or initiating anything to be blamed for being bit or mauled. Some dogs are agressive, and that's just the way life turns out. Most dogs are not like this, but for some people, the fear is there, and we may not know their reasons, and the fault may not lay with them, but because of something that happened to them. When my daughter in law comes to visit, our cat (our sweet, gentle 18 year old cat), has to be locked upstairs (not that she minds, since she is often upstairs on her own), not because SHE has ever bitten, but because of something that happened to my dil as a child. She is very fearful, and although she understands our cat would never harm her, it's something, that even with help, she has not been able to get over.
That said, the answer is no, you shouldn't see the dogs near the petting zoon, pool, etc. They are suppose to stay in their loops, although you may occasionally see them being walked out their loops.