"Kid stuff" is a colloquial term mostly used to refer to things that are considered silly or trivial, usually enjoyed by children. However, this term may not always fully represent the variety of activities and items that children are interested in. A few synonyms for "kid stuff" may include "childish things," "playful pursuits," "juvenile interests," or simply "things for kids." Other alternatives include "youthful activities," "adolescent hobbies," or even "immature pastimes." These words aim to capture the essence of the diverse interests of children and emphasize that there is no shame in enjoying activities that are typically associated with youthfulness.