This thought has come to me during many different interactions with young people coming into the work force, and haunts me in darker reflective moments in retirement. If we're producing adults poorly prepared or unprepared for the world they are entering, that's not the fault of the students, but of the institutions and people who have brought them to that point - which of course means us oldsters, and perhaps especially, oldsters who had leadership roles in educating and raising the young people.
That said, I think an awful lot of the complaining is rather vapid - yeah, the younger generations are not just like we were, and we may need to change some of our expectations and the ways we do things to fit them fully into their new roles. That's hardly new. Past the surface layers of "they are different," I still encounter highly capable, highly motivated new entrants into the work force.