Best Ways to Manage Children Component States in React

There are several ways to manage children component states in React:

1. 'State lifting': This involves lifting the state up to the parent component and passing it down to the children components as props. This ensures that all the children components have access to the same state.

2. 'Context API': This provides a way to pass data through the component tree without having to pass props down manually at every level. It allows for global state management and can be used to manage states of children components.

3. 'Redux': This is a state management library that provides a centralized store for managing the state of an application. It can be used to manage the states of children components by connecting them to the store.

4. 'React hooks': This is a new addition to React and provides a way to manage component state without using classes. The 'useState' hook can be used to manage the state of children components.

The best approach depends on the complexity of the application and personal preference. However, 'state lifting' is the most basic and widely used approach.