Basic research studies in the past 2 decades have established that conduct problems and antisocial behavior are associated across generations within families. The Fast Track study represents a major prevention effort with children showing higher levels of conduct problems in childhood, and the Rothenberg et al. (2022) study sheds light on whether this intervention has beneficial effects in the family of procreation. In this commentary, we consider implications of the major finding that such effects were found for women but not for men. We discuss evidence that men’s parenting behavior is influenced by the parenting behavior and overall risk of their women partners, and thus preventive interventions in childhood may have beneficial influences on fathers through mothers.