
These are the longest relationships we have. Given the typical lifespan, we co-exist with siblings longer than with our parents, partners, children, and, usually, our friends. As we age, the reasons for needing to get along with siblings often shift. When young, we need to get along with siblings because we live in close quarters sharing bathrooms, bedrooms, and living space. In early adulthood, we may create new families by marrying or partnering, having children, and establishing careers. Siblings may recede in importance during that phase. But, as our parent’s age, caregiving decisions, often regarding life and death, need to be made. We need to collaborate with our siblings to negotiate around our parents’ needs. There is another reason we need to get along with our siblings in adulthood—
