2 adults, 2 kids, multiple devices (Phones/Tables/AppleTV/"Smart" TVs), multiple homes, one 4 stream subscription. On average i would say each user has about 3 devices capable of watching Netflix, and on any given day i would say 8-12 different IP addresses are in use, depending on commutes to/from school/work.
Add to that the summerhouse which also has AppleTV.
And while i don't mind them trying to limit password sharing, i will not spend my time defending myself over legitimate use, so the second this bothers me i'm hitting the unsubscribe button. I have enough "time robbers" to deal with, and i'm too old to deal with stuff that doesn't work by itself once setup. Keeping the internet/wifi running is work enough, i don't need the extra stress of signing in my kids devices every n days.
Im paying for the 4K plan in the UK which comes with up to 4 devices simultaneously.
We have Netflix installed on the TV, consoles, mine and my other half’s mobile devices and based on the T&C when I signed up it’s ok because it’s a single household.
However I don’t see how they’ll enforce no sharing whilst not breaking existing household account usage.
Then again, it's easy to arm chair other people's decisions.