It seems to be one facet of a theme of infantilization and youth glorification in work culture and society at large. I am not sure whether it has any relationship with the rise of the "social" plague in industry, and the widespread infiltration of VC onto college campuses (and now elementary school playgrounds), where the youth are increasingly primed for dependency through the advertising and systematic denial of experiences.
Offices for adults these days are becoming more like playgrounds, and playgrounds for kids are becoming more like jails. I can't understand all the psychodynamics at play, but something is clearly broken with the way we treat our youth and our narrowly defined notions of "fun".
Work culture is not about the worker or the work anymore, it is about creating an interdependent unit of labor. But if neither the quality of work nor the quality of life for the worker is emphasized, I am not sure what the purpose is besides to maintain social order.