Canine Companions is one of the most reputable service dog training facilities operating nationwide. This link, https://canine.org/service-dogs/service-dog-month/ provides an excellent overview of the differences between service dogs, therapy dogs, facilities dogs, and ESAs.
More to the point, it provides some very concerning statistics about the problems created for service dog users by the inappropriate presence of other animals in public settings. There are consequences to allowing untrained animals to go where they shouldn’t be.
To learn more about Canine Companions, visit, https://canine.org/about/