When western medicine and public sanitation were exported to the least industrialized nations, this caused a surge in their population which outstripped food supply and resulted in malnutrition, mass starvation, and political unrest, this illustrates the description of a Latent Dysfunction.
Fencing (sword fighting) can impact a child's self esteem by teaching them chivalry and respect, as well as exercising them, a parent's role is simply to support them, same can apply to Baseball.