No, most restaurants do not require customers to wash their own dishes. In a typical restaurant setting, customers are not responsible for cleaning their dishes. Instead, it is the responsibility of the restaurant staff to handle dishwashing and maintain cleanliness in the kitchen.
After customers finish their meals, they usually leave their used dishes and utensils on the table. Restaurant staff members, such as busboys or waitstaff, collect the dirty dishes and take them to the kitchen. In the kitchen, the dishes go through a cleaning process, which may involve pre-rinsing, using commercial dishwashers, and sanitizing.
Restaurants have specific procedures and guidelines for dishwashing to ensure proper hygiene and sanitation. This includes using hot water, commercial-grade dishwashing detergents, and sanitizing agents to effectively clean and eliminate bacteria and other contaminants.
However, it's worth mentioning that there are a few exceptions to this general rule. In some unique dining experiences, such as certain interactive or communal dining establishments, customers may participate in the dishwashing process as part of the overall experience. But these cases are relatively rare and not the norm in most restaurants.