Final answer:
Props should not be copied into state where possible, as it leads to duplication of data and increased complexity of the component. It is best to use props directly, and only copy them into state when necessary.
Step-by-step explanation:
When passing data to a component in React, it is common to use props. Props are read-only and should not be modified directly. Instead, if a component needs to track the value of a prop, it can copy that value to its state during initialization.
However, it is important to avoid copying props into state where possible because it can lead to unnecessary duplication of data and increase the complexity of the component. When a prop value changes, it does not automatically update the state value, so the component needs to be updated manually.
Copying props into state should be done only when necessary, such as when the copied value needs to be modified within the component. For most cases, it is best to use props directly and avoid maintaining duplicate state values.