We have never had an issue with this at any restaurant, except the character meals, which they will tell you, that you are paying for the experience, even if you don't eat. Yachtsmen Steakhouse, La Cellier, San Angel Inn, Liberty tree tavern, etc. My kids are picky eaters and wont eat at a lot of the places my wife and I enjoy, so they sit at the table with us, while we eat, and yes we let them pick off the plate if there is something they want to eat. 6 years and we have never had anyone say to us that we cant share meals, or have extra people with us during our reservation, again, except for the character meals. Think of it as any other restaurant you would go to outside od Disney, there is no requirement to eat. Also, the waiter/waitress wont say anything, it will lessen there potential tip. Now there are items that they will charge you extra to share, like the Porterhouse for two at Yachtsmen or some signature restaurants, but there are plenty of other items on the menus that you definitely can split.