Ok lazy brained, the empirical data:
The numbers of 25 - 34 year olds living with their parents is at a record high in the US. See the chart below for historical data. It's not just the dubs, and yes it is a generational shift.
From 2016: Pew researchers noted that a challenging job market, particularly for young men, is a major factor driving the trend. The Bureau of Labor Statistics reports that 5.7 percent of men ages 25 to 34 are unemployed, a full percentage point lower than older men. Analysis of census data shows that 36 percent of older millennials without jobs live with their parents, compared with 18 percent of employed men. is also a big part of the story. Analysis shows that just 15 percent of older millennial men with a college degree live with their parents, compared to 26 percent with only a high school degree.
Poor job prospects may be making young men less desirable for marriage, since most women look for men with a steady job. But older millennial women are also living at home in bigger numbers. Overall, a $17,000 earnings gap between college educated and high school educated adults age 25 to 32.
This also explains why the under-educated males like Trump so much. He appeals to their failures; it's not their fault. It's the Chinese and Mexican trade policies. It's the immigrants. When the real reason they are being left behind is because the economy has changed to the point of rewarding ambition, education and entrepreneurial aptitudes and not rewarding those lacking ambition and education. Trump promising to bring back blue collar jobs is in direct response to those who feel entitled and are too lazy to do anything but whine about it.
This also ties in directly with the recent OP regarding where our collective DNA will be in a few thousand years. What humans view as the 'fittest' DNA is changing, and those who do not meet the new normal will be left behind and will be less likely to pass along their DNA.
That will be $1000. I don't work cheap. And you are welcome.