What if the child doesn't do his homework?

Children don't write, not because they can't, but because parents' coercion is so strict with their children that they can't write any more. Parents' coercion has caused great pressure on their children, but some parents think that their children always fail in exams, don't do homework and play happily, which makes them think that's it. I think parents should not be too strict with their children, but they should not be too loose.