I haven't played with my own restaurant just yet. Been too busy playing with my legacy family, will probably have the next heir run a restaurant. However one thing I have noticed is that I cannot get my household to all sit at the same table without being in a group. I'll have one of the parents request a table, but only they can sit at it. The rest of the family is out of luck unless they're in a group gathering. You'd think them all being in the same household would be good enough, but nope.