Huh? You don't need password resets or thumb prints... that sounds ridiculous.
Just limit playing to one device at a time. Spotify does this and it works great, and the instant sync/control actually makes it seem like a feature rather than a limitation. Most people watch in the evening at around the same time, so problem solved real quick.
Or pay an additional fee for a family plan to allow a set number of multiple users to stream simultaneously, if Mom and Dad want to watch something in the living room and the kids want to watch something upstairs.
Just limit playing to one device at a time. Spotify does this and it works great, and the instant sync/control actually makes it seem like a feature rather than a limitation. Most people watch in the evening at around the same time, so problem solved real quick.
Or pay an additional fee for a family plan to allow a set number of multiple users to stream simultaneously, if Mom and Dad want to watch something in the living room and the kids want to watch something upstairs.