"Millennials are buying fewer cars and houses. Does their 'culture' favor non-ownership?"
No... they have higher levels of student load debt than previous generations, and lower income prospects due to stagnating wages. Almost everyone I know who DOES get a high-paying job eventually winds up buying a car and house.
"Fewer teenagers are working jobs. Are they more lazy?"
No... there are more unemployed adults these days, who are forced into the restaurant and retail jobs traditionally filled by teens. As professionals in the financial industry, surely you understand well enough that the official "unemployment rate" does not reflect the true "labor participation" rate.
Is all of this willful ignorance? Or are financial writers not researching and thinking anymore?