Until the early 20th century, holding a mortgage came with a stigma. You were a debtor, and chronic indebtedness was a problem to be avoided like too much drinking or gambling. The four words “keep out of debt” or “pay as you go” appeared in countless advice books. As the YMCA told its young charges, “If you can’t pay, don’t buy. Go without. Keep on going without.” Because of that, many middle-class Americans—even those with a taste for single-family houses—rented. Home Sweet Home didn’t lose its sweetness because someone else held the title.
