 However, the shape emerging adulthood takes can even vary between different OECD countries, and researchers have only recently begun exploring such cross-national differences.For instance, researchers have determined that Europe is the area where emerging adulthood lasts the longest, with high levels of government assistance and median marriage ages nearing 30, compared to the U.S. where the median marriage age is 27.Emerging adult communities in East Asia may be most dissimilar from their European and American counterparts, for while they share the benefits of affluent societies with strong education and welfare systems, they do not share as strong a sense of individualization.