It's often of poor quality and not in 4k. I rented a movie from YouTube the other day and the stream supported HDR, and if I had a 5.1 surround that would have worked, too!

If you're not watching 4 hours of TV per day it's not that expensive to rent content, but I'm saying this from the point of a westerner. For other parts of the world a $5 USD for a movie for 48 hours doesn't make any sense over straight up piracy.