Family is the most basic group a person belongs to. I, youngest child under 6 full nest II, youngest child 6 or over full nest III, older married couples with dependant children empty nest I, older married couples with no children living with them, head in labor force empty nest II, older married couples, no children living at home, head retired solitary survivor, in labor force solitary survivor, retired Modernized life cycle includes divorced and no children. Children also have more money to spend themselves. Families, friends, sororities, civic and professional organizations. Any group that has a positive or negative influence on a persons attitude and behavior.
Affinity marketing is focused on the desires of consumers that belong to reference groups.
Marketers get the groups to approve the product and communicate that approval to its members. US is not a classless society. Social class influences many aspects of our lives. IE upper middle class Americans prefer luxury cars Mercedes. Lower class people tend to stay close to home when shopping, do not engage in much prepurchase information gathering.