Then when your friends are at your home, you kick 'em out if you want to see a movie you pay, rented? wouldn't be fair also make them pay, or will you let them consume for free too?
Which rental service requires that each person watching pays a separate fee? If the terms dictated something like that then I simply wouldn't rent from that service.
Let's say you live alone and you want to see a movie. You pay for it. Same if I want to do it at my home. we both pay and we have the legal right to see it. What if suddenly, 20 friends come to my home to see the movie without paying as they were in their homes? Downloading is the same case. That's what I mean. You can't have the best of both worlds. Either you all pay to see it or no one.