I think it is quite the opposite: what is novel is that this has come before the court at all. Nobody would have dreamed of expecting children to stay inside and be quiet all day during my childhood, nor that of my parents, nor their parents; rather, we were often made to go play outside.
Sometimes there are properties about generations that get carried "alternatively" as cycles.
The generation that got too much authority will give the next generation more space (louder generation). Then the loud generation will create louder generation and authority will come back, etc.
It's just an example and I don't think the loudness is part of those properties but the abstract mechanism has been observed along few generation (I think this mechanism had a proper name but I cannot find it again).
> (I think this mechanism had a proper name but I cannot find it again).
Are you referring to the Strauss–Howe generational theory?
https://en.wikipedia.org/wiki/Strauss–Howe_generational_theo...
> This shift reflects a society aware of its declining birthrate, where children are becoming scarcer and more symbolically valuable, so institutions (like courts) may reflexively protect or favor youth-centered activity.
Pretty sure no one is valuing kids more because they are "scarce".
-Then: Older generations had the cultural authority, and children were expected to conform.
-Now: There’s increasing tolerance—and even privilege—granted to children (and parents), sometimes at the expense of quiet, order, or adult comfort.
Hypothesis: