Next-generation engagement is a key contributor to the success and continuity of family firms. Family relationships are an important factor in shaping such engagement. However, we know little as to how this engagement process unfolds, especially during the formative years of next-generation members. Using the principles of social cognitive theory and drawing on the career development, organizational behavior, and family business literature, we theorize the indirect influence of perceived parental support and psychological control on next-generation engagement in family firms through the mediating variables of self-efficacy and commitment to the family business. We discuss several possible avenues to test and extend this model in future research.