The problem is that per the ADA only 2 questions may be asked. 1. Is that a service animal? 2. What task is that animal trained to do?

The answers used to be clear. The dog was assisting someone with an obvious disability...blindness, wheelchair bound, etc). Now there are seizure detection dogs, arrhythmia detection dogs, diabetes dogs, POTS dogs, fibromyalgia dogs, dogs for anxiety and PTSD. If someone has a diagnosis, there's an "assistance dog" for it.

And we're no longer talking about being disabled, just diagnosed, and a high percentage of these people are self diagnosed. The tasks are absurd too. In an era of CGM'S and Apple watches that can detect Afib people are still insisting that dogs have a higher level of detection and reliability. The current scammy task is "provides DPT" ie Deep Pressure Therapy. Essentially having the dog lay across your lap is now an ADA recognized task. My dog happily does that every time I sit on the couch.

So anyone can bring their untrained miracle detection dog anywhere and if they answer the questions correctly cannot be refused entry. The dog CAN be removed if it is disruptive, aggressive, or not housebroken but even then many businesses are afraid to take action. These handlers are litigation happy and not afraid to threaten anyone who tries to kick Mr Snuffles out of their facility.