He knows that if the price is higher than that of 34 yuan, then he will think that he may have to make more efforts according to his own labor force. Of course, if the price is below 34 yuan, he may think that this is probably the level he can accept. In fact, if he is allowed to make money in this way, he can really feel the hardships of life and making money.
Nowadays, many children are actually pampered at home. Usually, if they have any needs, they just need to tell their parents. Basically, parents will be satisfied with whatever they want or when they have it. Even if parents don't agree for a while, they can let their parents fulfill their wishes in other ways. Because they can easily get anything they want, they don't have much concept of money.
Then, like this parent, let the children experience it personally to feel the hardship of making money. I think this is actually very helpful for the growth of children. Because in this process, they can deeply feel that it is not easy to make money, and when they want something in the future, they will also make an evaluation based on the money they earned. Picking up junk in a week only earned 34 yuan. In fact, for children, they will be deeply impressed and have a clear understanding of money.