Marketing has influenced consumer behavior of families by changing perceptions of what is normal and necessary to own. Popular media exposes people to new products, creating a sense that they must be purchased. This can make it difficult for families to budget as children may feel deprived if they lack items owned by others. Common marketing targets include children to influence parents' purchasing, though some argue this is unethical. The document also provides questions for a proposed study by Walt Disney on how families make vacation decisions, including which family members to interview and how to assess each member's influence.