Yes, but it's not a surprise.
Children had little choice but to grow up quickly just a few generations back. Young latchkey children were a common sight - I was one of them and expected to entertain myself from 2-6pm from around age 7. There was a microwave and some leftover food for me to make when I got home. Strict instructions never to open the door to strangers, but that was it. That would be seen as neglectful now.
I used to walk myself to school and back, used to walk to the library 15min down the (busy main) road. By age 10 I was expected to take two inner-city trains and a tram to get to my school because we had moved away. That would be seen as reckless now.
If children failed school it was their fault, not anyone else's. If a child walked out in front of a car they got a huge telling off. Adults, in general, were not afraid to tell a child off, and so we conformed to society more easily. Children nowadays are not to blame for anything. Fail school? It's the teacher's fault. Walk out in front of a car? The driver needed to have anticipated that. Tell a child off? You better hope you don't get an earful from the parent, or worse.
The fear of litigation means children are bubble-wrapped in so many ways that they cannot function when confronted with actual day-to-day life. In some schools, children are not allowed any sharps, including pencil sharpeners and scissors. Chemicals in Science are now so diluted they barely work. In Food tech, they are not allowed to do more than basic cutting, and some schools now require pre-cut meat and vegetables. As a result, children don't know how to handle actual danger anymore. Many don't take risks seriously, because they've never been exposed to it.
And when it comes to socialising, it's all pre-scripted for them. Parents don't allow young children out of their sight and intervene far too quickly in squabbles. Teachers have to fill every second of even things like tutor time with "meaningful" activities and lunchtimes are barely enough to eat and pee, so children don't learn social behaviour there. Again, any squabbles are intervened with. Then they have after-school clubs or evening clubs, again, with pre-scripted ways of interacting. They have no real chance to learn what is and isn't appropriate, so it happens a lot slower.
I do see it as detrimental. Studies on brains may show that today's generations' brains don't fully develop until age 30, but I wonder what similar studies would have shown 150 years back if the technology had been there.