Terms like “blended families” or “patchwork families” sound new and modern, but the concept is an old one. There have always been children growing up in what was then called “Stepfamilies”. However, what changed significantly over time are the reasons for such arrangements: Whilst historically they were mostly a result of early parental death, today’s stepfamilies are usually formed after parents separate. So today’s family arrangements are varied: Two children living in the same household might share both parents, making them full siblings. Or they might each be the biological child of one, but not the same, adult in the household, making them stepsiblings. Or one child might live with both of their biological parents of whom one is the parent and one is the stepparent of the other child, making the children half-siblings.