Final answer:
The question pertains to the behavior of stress eating in children and its connection to early exposure to unhealthy foods, but without additional context, it is difficult to label as true or false. Emphasizing physical activity and healthy eating is crucial in children's education and health.
Step-by-step explanation:
The question addresses a behavioral response in children with respect to stress eating and the influence of being introduced to unhealthy foods at an early age. While the statement in the question suggests a link between early exposure to unhealthy foods and a propensity for children to turn to food when stressed, to specifically say if it is true or false would require more context and research evidence.
However, it is well-documented that promoting physical activity and healthy eating habits forms an essential part of a child's education and overall well-being. It’s also important to note that the statement "merely restricting children's access to junk food at school is not enough to prevent obesity" implies that a more holistic approach including diet, physical activity, and education is necessary to combat obesity in children.