[trixn]

As I understood it you should not opt-in to use state conditionally in your component but you can still conditionally set the state. That means you should not conditionally call `useState` but it is fine to conditionally call the `setState` returned by the `useState`. That is not different to how you would use state in a class based component where you also wouldn't attach a state `this.state = {...}` somewhere in the middle of its lifetime. The component has state from the beginning of its lifetime or it hasn't state at all. There is not such concept as "Now that you are expanded you will transform into a stateful component".