We try to, but unfortunately Mr P doesn't always come home from work at a reasonable time..in which case I try to eat with the kids, but this isn't always possible as at least one child has eaten earlier due to going out somewhere or other!
When the kids were little, yes we did all sit at the table together. Nowadays I have the old fashioned 'Sunday Dinner Rule'. This is the time we all make sure we are there to eat toghether, and catch up on what's been happening all week :o)