The entire premise for many Dom Coms is that the lead characters are a family of maladjusted people who generally don't get along. Usually they consist of a Jaded Washout and/or Bumbling Dad father, a mother who is either a paragon of common sense and efficiency or a repulsive harridan (or both, a la Roseanne), and two-three kids who are unhappy, dislike each other, and resent at least one of their parents. Also, the father and his mother-in-law tend to hate each other. The family is generally fairly poor, although not always - Arrested Development is about a large, rich dysfunctional family.