I’m going to ask Natalie Frank, Ph.D. (Clinical Psychology) to chime in on this one. I’m not an expert on child development. I only have personal experience to go on. But I remember myself being very aware at even 5 or 6 years old. But I would talk about anything and everything to strangers even at 17, 18 years old, certainly all throughout junior high and high school.. seeking stranger’s approval.