LAUSR

101 Fathers groups are currently advocating for a universal 50/50 shared time presumption. While such agreements may benefit numerous families, many experts, including ourselves, worry that such a presump­ tion may offer the “right” solution for the wrong group of par­ ents: the 10% or fewer who contest custody in court. Other concerns we share include avoiding extensive time away from attachment figures among very young children, avoiding plac­ ing excessive travel demands on children in order to share par­ enting time across long distances, whether shared time needs to be precisely 50/50, and if some child mental health problems (e.g., autism spectrum) or personality (e.g., high conscientious­ ness) make shared custody less likely to work. There is, therefore, a critical need for studies on interven­ tions, including policy changes, that consider the risks, role of resiliency, and heterogeneity in the consequences associated with family instability. Brian D’Onofrio, Robert Emery Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Psychology, University of Virginia, Charlottesville, VA, USA