Are you a parent? I am, and your comment indicates you probably aren't.

Of course engaging with your children is vital, and their curiosity should never be dampened.

Boundaries are about social discipline and that's akin to training a dog. Sure, every parent should do their best to make sure their children grow up to good members of society (including classroom behavior).

But when you say that "parents are not powerless" your implication overstates that power. There's no way to force a child to be curious or to care about a subject. Some kids are just "born that way" and are a challenge even for the most caring and engaged parents.

And once that kid becomes a teenager, that power starts to ebb really quickly as they learn that parents only have so many tools to enforce that discipline.