two women serving kids food in a school cafeteria, back view

30s 50s adults aged and apron assistant back black boys cafeteria canteen catering caucasian childhood children copy dinner diversity drink elementary ethnic food girls group happy hat horizontal indoors kids lady lunch mealtime medium middle multi of part people person plate preteens primary queuing school schoolboys schoolchildren schoolgirls service serving smiling space staff uk up view waist waiting women work working