Which of the following is not a characteristic of childhood?

Concept: Child development splits growth into stages — infancy, childhood, and adolescence — and each stage carries its own recognised cluster of physical, social, and cognitive traits. Deciding whether a given trait belongs to a stage means checking it against that stage's established profile, not judging it in isolation.

Application: Childhood (roughly the school-going years) is documented in child-psychology literature as a stage of intense curiosity and exploration, strong peer-orientation and gregariousness, heavy engagement in group and team games, and comparatively steady, gradual physical growth — unlike the sharper growth spurts of infancy and adolescence.

Cross-check by value:

• Extreme gregariousness — matches; childhood is marked by a strong pull toward peer groups and collective activity.

• Lack of curiosity — contradicts the profile; childhood is in fact marked by high curiosity and constant questioning, not its absence.

• Stability in growth — matches; growth in these years is comparatively steady rather than marked by sudden spurts.

• Participation in group and games — matches; team and group play define this stage.

Result: Since curiosity is a hallmark of childhood rather than something absent, the trait that does not fit the profile — and so is not a characteristic of childhood — is the one describing a lack of curiosity.