The reason the prompt is tied to autoplay is that Netflix automatically starts the next episode around five seconds after the previous one finishes. Autoplay is switched on by default for new Netflix profiles, which means many users have never changed the setting. Once episode autoplay is switched off, Netflix will stop at the end of each episode, giving you full control over when you continue watching. The setting applies to your Netflix profile rather than a specific device, so you only need to change it once. Second, it stops Netflix from continuing to stream when someone is no longer actively watching, helping avoid unnecessary data usage.