React 19 useFormStatus Hook Only Works Inside Child Components, Not the Form Itself

React 19 introduced useFormStatus to help developers avoid prop drilling when tracking form submission state across multiple child components. The hook, imported from react-dom, reads the pending status of a parent form element — but only when called from a descendant component, not from the component that renders the form itself. When placed inside the form-rendering component, the hook always returns false because the form tag does not yet exist as an ancestor at the time the hook runs. Moving the hook into child components like payment fields or submit buttons allows it to correctly reflect submission state without receiving any props from the parent. This architectural constraint means each child component can independently query form status, eliminating the need to thread a shared pending value through multiple layers of the component tree.