Hello; I have been seeing dogs in places lately where I never saw them before. In Kroger markets, Tractor Supply are two that come to mind. I reported to the manager at Kroger about a dog and was told he could not do anything. While I get that some dogs are not any nastier than some people I still do not want them around my food. Anyway I guess the new thing is to take a dog places and call them support animals.
I get that the blind need dogs and also some military veterans. I see these dogs sometimes and they often have a vest or some such with labels. These dogs are not a concern. I think they are well trained and screened for temperament.
I am pretty sure a lot of folks are calling a regular dog a support dog and that these dogs likely have little if any training. My guess is after a few big bucks law suits more companies will start banning most dogs.
On a plane you cannot have a gun nor a knife to defend yourself with from a dog attack.