As per the [React Server Component RFC on promise support](https://github.com/acdlite/rfcs/blob/first-class-promises/text/0000-first-class-support-for-promises.md), [client components cannot be async functions](https://github.com/acdlite/rfcs/blob/first-class-promises/text/0000-first-class-support-for-promises.md#why-cant-client-components-be-async-functions).