The Facebook Data Team had a quantitative look at status updates by age and content:
The chart on left confirms the typical stereotypes about younger and older people. Younger people express more negative emotions (including anger) and swear more. They use more pronouns referring to oneself (“I”, “my”, etc.) and talk more about school. Older people write longer updates, use more prepositions and articles, and talk more about other people, including their family.
Word categories are sorted by correlation, from greatest to least. Blue indicates positive correlations while red indicates negative.