I think when you prepare raw meat in your kitchenm, you can wash your hands and disinfect your counter tops. Much harder to disinfect a dog's mouth, face and paws. And it's probably not a big issue for adults, but having infants and small children in the house is a whole different thing.
Oh ok I guess I can see that point. My dogs don't touch the meat with their paws at all though but I can see how it would be difficult if they did to make sure they weren't tracking any bacteria into the house after eating outside. Thanks for the insight.