One can question. It's a difficult reality sometimes though. Children have minds and bodies of their own. They mature at different rates.
Outside of taking care of a child's physiological needs, their parents are providing a small proportion of the inputs which go into a child's system of being. Peers, teachers, elder family, media, the economic system [and it's insatiable desire for consumers and tools to leverage the consumers], all conspire to forward agenda that often don't align with and support being a good citizen.