If a child is defined by those who do not have full agency, than many octogenarians die as children. If the definition of 'child' is one who does not have 'full agency or responsibility,' then some would argue that there are elementary school attendees that aren't children.
That any given parent has a responsibility to impart agency and responsibility to the child is a given; but our philosophy of action must include a realistic recognition that *all parents fail to some degree* and that 'agency' 'responsibility' 'adult' are all ultimately imperfectly defined.
Choices beget consequences, but one cannot rationally argue that all consequences are deserved.
Although I would agree that instilling (allowing to develop) agency and responsibility is paramount, and there is a point at which detachment or acceptance is rational, to watch consequences suffered by loved ones in that name is to argue against helping others entirely. Too often the refuge of those who want to *avoid* the responsibility of being a part of the support network for others.
Just thoughts, not accusations.