In this commentary, Buchheim states that she recognizes that infant-parent relationship has been shown to be of particular significance to preterm infants' socioemotional development, and that preterm children have been reported to be at higher risk of developing attachment insecurity and disorganized attachment. In the feature paper on attachment development of preterm and full-term infants, Witting, Ruiz, & Ahnert (2016) presented three single cases to describe the qualitative differences with respect to the parents' interactions with their boys. Including the specific role of fathers in the child's development has been an important tradition. The authors correctly recommend that parent-child interventions should aim to facilitate the fathers' understanding of the vulnerability in their babies, especially in stressful situations. Also, the paper by Witting and co-authors raises important questions, which have to be proven in a larger sample. The focus on fathers with preterm infants is a promising research field with new challenges for clinicians and staff at the neonatal intensive care unit (NICU). [For "Variations in Early Attachment Mechanisms Contribute to Attachment Quality: Case Studies Including Babies Born Preterm," see EJ1142016.]