If there is a new adult like a new Practitioner, they child may be unsure and unsettled especially if they haven’t been introducing to the adult the child may be anxious or act up and might not want to approach the new person. If the children were not told about the new adult, they may be even more hesitant to approach the new adult.
An unfamiliar adult might change a child’s behaviour because they might not engage in the activities that are set out or going on in the setting. The unfamiliar adult might be a distraction for the children because they may want to play and interact with adult and not do other activities. They may also want to show off what they can do to the new adult in the setting.