Yes, we deal with this occasionally with people thinking the only type of service dog is a German Shepard leading a blind person.
Picture below is our trained ($$), registered service dog working on a Chicago Transit bus during vacation.
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Regarding the rest of this discussion: the history of dog development is available for anyone to study. This discussion supports the idea that everyone is different and has different opinions, values. and ingrained beliefs. It boils down to us humans accepting that and respecting others regardless if it differs than ours. Unfortunately, human nature will NEVER change. Yes, this discussion is mostly about humans, not dogs.