We commonly get compliments about our kids behavior as well. The fact is that they get to go out for dinner more often if they can show some manners while doing it.
My youngest pitched an Opie Taylor, lay down in the floor and scream fit one time. I dragged him out of the restaurant, threw him in the van and drove around back of the parking lot and flailed his behind off. When we got home he got it again and had to watch a news channel the rest of the day and sit on the couch. He was three, he is now fifteen and it hasn’t happened again. He was the only one out of my three to try me in a restaurant.
Ours give their orders, thank the wait staff for refills and are expected to leave the table clean and push their chairs in upon getting up from the table.