What is the primary source of income for most individuals aged 20-35?

The primary source of income for most individuals aged 20-35 is wages or salary. At this stage in life, many young adults are typically entering the workforce after completing their education, which positions them to earn a steady income through employment. This age group is often focused on building their careers, acquiring work experience, and increasing their earning potential, making wages or salary the most significant part of their income.

While investment returns can contribute to an individual's income, most 20-35-year-olds may not have substantial investments or may not yet be in a position to generate significant returns. Social Security usually provides benefits primarily to older adults or those with disabilities, so it is not a primary income source for this age demographic. Gifts from family may also provide supplemental financial support but they cannot be relied on as a consistent or primary source of income. Thus, wages or salary stands out as the predominant source for this age group.