The US Census Bureau recently released a study on how young adulthood has changed between the 1970s and today.
In 1975, a 57% majority of young adults aged 18-34 lived with a spouse, while just 26% of adults lived in their parents’ home. In 2016, only 27% of young adults lived with a spouse, while the proportion of 18-34 year olds living with their parents went up to 31%, becoming the most common living situation.