My two cents... You should definitely eat as a family. If someone else works later then feed that person later. My true belief is that life lessons BEGIN at the dinner table. You prepare the meal and sit down together. No TV no movies and no toys at the table! This is the first place a child learns what it means to sit still and if they do not learn it here, how hard will it be for them in school? If they do not sit with you, they do not eat. Enforce the rule of food must be eaten at the table and properly, i.e. no shoving in the food. I have often spoken to others about this rule and have always received positive feedback. Lastly, they can also be taught to help "set" the table and to "clear" it by putting their dish either in the sink or the dishwasher. These little things will go a long way. Perseverance is the key, believe me it is easier to be a teacher than a parent!!
About me: SAHM mom of five, aged 21-15, 4 boys, one girl, two oldest in service,homeschooling highschool with three youngest