Maybe because my family didn't have any of these negative issues like money difficulties or alcoholism, or drugs we had nothing to fight about. Although we have different opinions on politics and religion we don't argue about them. I can't think of one occasion when any of us had even a minor fight. Were not a huge family but average. There are no step anythings in our family, maybe that helps.
Considet yourself blessed. I didn't have drug or alcohol in my family either. Just a LOT of opinionated people.