In some western countries. many children do housework to get pocket money(零用钱). They usually start to do this when they are ten years old.
School students have to do homework and study for tests. They don't have much free time on weekdays. They often do housework on weekends.
Young kids only do easy housework. So they don't get much money. But that's enough(足够的). Many of them only want to buy candy. And candy is cheap! They often help wash the dishes, clean the floor. or fed(喂养)the pet cat or dog.
When they get older, they want to buy more and more things. They want more expensive things than candy. So they have to work harder! They often help their parents wash the family car, cut the grass. or cook meals.
Some jobs are difficult. But it is a good way for children to learn new things. For example, they can learn how to use a lawnmower(割草机)or how to cook delicious food. Of course, their parents help them at first.