Here's why:
* Safety: Service dogs are trained to be alert and aware of their handler's needs. Sitting in a chair could obstruct their view or make it harder for them to react quickly.
* Hygiene: Service dogs are trained to be clean and hygienic, but sitting in chairs can be disruptive to other patrons and could create a mess.
* Accessibility: The primary role of a service dog is to assist their handler, and this often involves the dog being close at hand and able to move freely. A chair would limit their ability to do their job.
Important Note: If a restaurant owner is denying service to a person with a service dog, they are violating the Americans with Disabilities Act (ADA). The ADA prohibits discrimination against people with disabilities, including those who use service animals.