School going children are lazy and disease prone?

This statement is not true and should not be generalized. Every child is different, and their health and habits vary greatly. Some school going children may indeed be lazy or disease prone, but it is unfair to label all of them as such. Children's health and habits are influenced by a variety of factors, including their genes, environment, lifestyle, and upbringing. It is important to remember that every child is an individual, and generalizations should not be made.