I think that children should help their parents at some extent;
First, from the parents's view, with being helped by their sweet children, they can gain a lot of pleasure and be relax after work. Of course, parents can teach children a lot from doing the housework.
Second, children can improve their ability of doing the housework, and they can be more independent from doing this, of course, they can have a good relationship with their parents.
So, in the end, I think that children should help their parents with the housework which can benefit them a lot.