Final answer:
Cohabitation has become more common among 25- to 34-year-olds, reflecting a cultural shift toward accepting living together outside of marriage. Accumulating evidence suggests that younger individuals are more likely to cohabit as a step prior to or in lieu of marriage. This trend coincides with an increase in the median age for marriage and an overall rise in cohabitation rates.
Step-by-step explanation:
The question centers on the prevalence of cohabitation among different age groups, specifically whether people less than 25 years old cohabit more than those aged 25-44. Data indicates that cohabitation has become increasingly common among those aged 25-34, as they may be using this living arrangement to assess the relationship compatibility or delay marriage for various reasons such as career or education. Meanwhile, the median age for marriage has increased, suggesting that individuals are opting to cohabit at a younger age and postponing formal marriage. The U.S. Census Bureau found that the majority of cohabitating relationships transition into marriage within three years.
Overall, it appears that cohabitation rates are higher among younger adults, in particular as society's views have shifted to see living together outside of marriage as more socially acceptable. Additionally, the number of unmarried couples living together has risen significantly over the past decades, reflecting a broader cultural shift.