Jenks agrees with Aries that childhood was a creation of modern society. For Jenks, modern society was concerned with 'fruturity' and childhood was seen as preparation for the individual to become a productive adult in the future.
Jenks argues that childhood is changing as society moves from modernity to postmodernity. In modern society, adults' relationships were more stable, but in postmodern society, the pace of change speeds up and relationships become more unstable. For example, divorce becomes much more common.