In nursing school we had to do a Denver II Developmental Screening on a child aged 6-18 months. I wound up assessing the child of one of my parent’s church friends. The couple were young but old enough to be well-educated with decent paying jobs based on the neighborhood. They weren’t fundies by any means, in fact, the father was the primary caregiver. He proudly gave me the child’s health history, including that they had never had a single cold. He attributed their good health to never having been to daycare, which was likely true.
As I progressed through the developmental screening the child was doing great at fine and gross motor, but was lagging significantly in language/social. The dad seemed kind of nervous and I, the first semester nursing student, probably did a shit job of reassuring him. I really saw the gears start turning in his head though as he realized that playing with other children was actually super important developmentally.