Noncoercive = embracing others exactly the way they are, and they can change if they want to and they don’t have to. Coercive = trying to control, fix or change others against their will.
Parents often believe that their financial support and other services for their children morally obliges the children to provide certain services in return. But there is no justification for that belief. It is just a rationalisation of the traditional status quo between parent and child. The truth is that there is a moral asymmetry between parent and child: in the event of an intractable dispute between them, the parent chose to place the child in the situation that caused the dispute; the child did not choose to place the parent there.
Does financial supporting our children mean they must obey us? Is it right to expect quid pro quo for our support?
The Faber/Mazlish How To Talk So Kids Will Listen books are not taking children seriously: they advocate double-binding and lying to children to manipulate them into going along with the parent’s agenda that is independent of and impervious to the child’s own wishes.