“…The transition from adolescence to adulthood is characterized by numerous challenges (Kessler & Walters, ) and opportunities (Masten, Obradović, & Burt, ) as young adults negotiate new adult roles and responsibilities (Schulenberg, Sameroff, & Cicchetti, ). Relative to adolescents, emerging adults demonstrate more civic engagement, social competence, increased social capital and general life satisfaction (Eccles, Templeton, Barber, & Stone, ; O'Connor et al., ) along with new perspectives on relationships and intimacy (Roisman, Masten, Coatsworth, & Tellegen, ), personal identity (Schwartz, Klimstra, Luyckx, Hale, & Meeus, ), family obligations (Fuligni & Pedersen, ), and work responsibilities (Roisman et al., ). These wide‐ranging transitions suggest possible age specificity in the epidemiology of risk‐taking behavior, and specifically in the environmental impacts on those behaviors.…”