The problem here is that homework is designed to provide the structure kids need to apply themselves and actually learn. If you don't provide structure for this, they will simply never study and accept failure. They frequently don't have the self-discipline and mindfulness and long-term vision to study "because it's the right thing to do". I know my entire education, even with college, was "why do i need to know this?" and being wildly bored with it all as a result.