Every child needs parents who learn what to expect at different ages and stages.
May. Having realistic expectations makes our jobs as parents easier. Childhood as a stage of life has not always been well understood. Childhood was not considered a separate stage of life. In fact, it has only been since the latter part of the 19th century that childhood has been actively studied. Modern science has discovered many things about children that our medieval ancestors didn't know, or, at least, didn't tell us.