4. The High Cost of a Phone-Based Childhood

Young adults are dating less, having less sex, and showing less interest in ever having children than prior generations. They are more likely to live with their parents. They were less likely to get jobs as teens, and managers say they are harder to work with. Many of these trends began with earlier generations, but most of them accelerated with Ge

Surveys show that members of Gen Z are shyer and more risk averse than previous generations, too, and risk aversion may make them less ambitious.

In an interview last May, OpenAI co-founder Sam Altman and Stripe co-founder Patrick Collison noted that, for the first time since the 1970s, none of Silicon Valley’s preeminent entrepreneurs are under 30. “Something has really gone wrong,” Altman said. In a famously young industry, he was baffled by the sudden absence of great founders in their 20