In contrast, social influences tend to impact the consumers’ buying behavior through a person’s culture, reference groups, social classes or media and are generally viewed as an external factor in decision making. For example, in India and Vietnam, consumers are most likely to use toothpaste are people between the ages of 18 to 30 who have attained education beyond high school. Studies indicate that although this age group understands the benefits of maintaining proper oral hygiene through brushing their teeth, they tend to be influenced more by professional athletes, a family doctor, or a peer leader. These reference groups have the ability to exert influence over a first-time buyer and make a substantial impact when purchasing a product. “Based on [Ludhiana’s] study, parents are influencing more for buying toothpaste then friends, spouse, kids and self-decision. So reference groups are also influencing the consumer in decision making” (Vani 11).