Sadly, that is true; they have no independent spirit it seems.
American kids are rather becoming that way.
Perhaps it is the cell phones. Everyone just lives in their own room, their own world and don't even talk to each other: I have noticed that with my adult kids raising their kids. They will pass each other in the house, heads bent and eyes on the phone in their hand, avoiding collisions with peripheral vision. The kids barely speak to each other, let alone the parents.
Watching parents today: with their kids; they don't seem interact much at all.
My generation never studied in our rooms, but at the kitchen table, or at the library; nor did my kids ever study in their rooms with or without the door shut, either, they always hung out where I was and talked with me about what they were studying and asked advice on so many things; we shared rooms, etc.
Parenting is an exhausting 24/7, why anyone would want to keep a kid at home longer than 18-19 years is beyond me. And I had four GOOD kids, no drinking, drugs, early pregnancies, poor grades, bad friends, etc. But they ranged in age so wide I actively was raising them, for for 32 years.