As adolescents become adults, many things can change who they are, but could the most important factor be the adults around them? Parents and celebrities have the greatest influence on teenagers, on how they behave, who they date, what they wear, and their moral standards. What a teenager becomes depends on those around him and the degree of involvement of his parents in his life. Parents influence who he dates and even the age at which he first has sex. In a research note by Child Trends, a survey was done asking children what influenced them and at what age they decided to have sex. This study proved that if children have a positive relationship with their parents, they can delay sexual relations and reduce the risk of teenage pregnancy (Moore). Half of the teens surveyed for this memoir said their parents influenced this decision, and half of the people who were parents of teens said their teen's friends influenced who and when the teens had sex (Moore) . A computer model was created to show whether parents influenced their children's attendance. This model showed that parents are willing to give more to support their children if they believe it will give them more surviving grandchildren. When parents were allowed to intervene in their children's identities, especially their daughters, they tended to be more supportive of the girl who had a boyfriend who was more needy than the others. Does this seem strange? When parents provided this type of support, they maximized the number of surviving grandchildren. This parental generosity was exploited by their children over generations, once the children realized that they could get more resources from their parents if they dated poorer, less suitable partners.... . middle of paper ...... how this evolutionary trend. When parents were allowed to intervene in their daughters' dating, they were more likely to support boyfriends who didn't have many resources. By helping the neediest children, parents increased the number of surviving grandchildren. But this generosity has been exploited by the neediest girls by choosing less suitable partners, such as ordinary bad boys and threats to society. The neediest girl gets the same amount of money as her pickier sisters, without having to wait for the perfect man. Over time, as this trait was discovered, more and more girls chose this route for help, and over time, the number of caring sons-in-law decreased. Cultural factors, personal development, and chance events have a far greater effect on girls' choices than genes, but it seems clear that evolution has played an important role..