We have the Premium package for 4 screens and we've been continously subscribed for about 12 years now.
DD and her partner do actually live at the same address as us so should count as household members you would think? But they're currently travelling abroad and will be for over a year. The new rules are saying that logging in at a different address will be OK, but you have to log in at your home address once a month. Obviously they can't do that. This also seems to mean they wouldn't even be able to get themselves their own account over there, since they are constantly on the move. Seems Netflix don't want travelling customers!
As a Premium customer I also allowed my elderly parents at a different address to log in and watch The Crown etc. But, similar to pps, I think my parents are unlikely to get their own account.
I was quite OK with paying £15.99 a month, even though it's pricey, but with these stupid new rules I feel a cancellation coming on. They'll have lost a steady customer. I think a lot of people will do the same, they're already expensive compared to other streaming services and they might have shot themselves in the foot here.