Final answer:
Cohabitation started to dramatically increase in recent years among young adults ages 25-34. In 2018, 15 percent of young adults in this age group were living with an unmarried partner, up from 12 percent ten years ago.
Step-by-step explanation:
Cohabitation started to dramatically increase in recent years. According to the U.S. Census Bureau, the surge in cohabitation among young adults ages 25-34 has been notable. In 2018, 15 percent of young adults in this age group were living with an unmarried partner, up from 12 percent ten years ago. This increase in cohabitation is likely due to the decrease in social stigma surrounding the practice.