Answer to Question 1
Demographic Variables: Child-free women tend to be those who have never married and aren't cohabiting, have a bachelor's degree or higher, grew up with both biological parents, and are white. Women with a college education and careers are more likely than their male counterparts to be child free. This gender gap probably reflects women's awareness of the challenges of balancing employment and parenthood, particularly because women still have more responsibility than men for housework and child care.
Individual Choices: Some people decide not to have children because their family has a history of diseases such as breast and other cancers, early Alzheimer's, and muscular dystrophy. Because social pressure to bear children has diminished, both women and men feel freer to focus on their own goals and interests, value their independence, and do whatever they want without worrying about raising children.
Answer to Question 2
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Why people don't stop smoking
People riding bikes in Netherlands
Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Work Settings for People Earning Master’s and Bachelor’s Degrees in Psychology
Aggregates are people who happen to be in the same place at the same time.
Weather Typically Associated with a Warm Front (North America)