This document discusses single-parent families, remarried families, and stepfamilies. It describes the characteristics of these family types and challenges they may face. Single-parent families headed by mothers are more likely to live in poverty than other family structures. Remarriages have a higher instability rate than first marriages due to blending families and relationships. Stepfamilies face difficulties determining roles and disciplinary boundaries between stepparents and stepchildren. The document provides various perspectives on how different family theories view these non-traditional family structures.