sentences:  This has important implications for parents and those working with school-age children because it suggests that they can potentially prevent or reverse fear developing if they recognize a child is involved in a fear-related vicarious learning event.In cases where infants become fearful of strangers or unknown entities (such as foreign objects), parents should respond positively towards the stranger, only after the child has a phobic response to it.Since stranger anxiety can manifest itself suddenly or happen gradually throughout the development of the toddler, dealing with it can be hard sometimes because people are often not prepared to react to it or they don't even know what stranger anxiety is.