Is the child who caused damage to a man's bicycle in the vegetable market liable for compensation, and how is the compensation estimated?

The boy guarantees the damage to the bicycle from his own money. If he has no money, he waits until he becomes solvent. No hadd punishment is imposed on him. He must guarantee what he has damaged from his money, and the diyyah (blood money) for his killed victim is on his 'aqilah (male relatives on the father's side). The value of the damage is estimated by experts, and his guardian pays it from his money if he has any; otherwise, it is a debt upon him.