You know, I really think that when God puts together families, he sticks his finger into the white pages and selects a group of people at random and then says to them all, 'Hey! You're going to spend the next seventy years together, even though you have nothing in common and don't even like each other. And, should you not feel yourself caring about any of this group of strangers, even for a second, you will just feel dreadful
Ultimately it's a leap of faith and a leap of imagination to put yourself back in time into those conditions and situations and see how you would react.