My son will start nursery come September next year and will be a week away from turning 4
He's never been left with anyone other than my husband as we've never felt the need to
He has a younger brother and we are out every day without fail so he is very well socialised
He is the most confident outgoing little boy and is great amongst other children but if he loses sight of me or another adult that he doesnt know talks to him whilst out he will run back to me or not engage in conversion with them.
Really worried about how he will settle