whenever video quality question pop up, I just laugh because it isn't a question in the first place, in this era of 4k tv, who will be ok watching low quality content, gone were those when people have no choice than to upload low quality content due to the absent of quality media tools, it was really disturbing and we had to watch things like that while straining out eyes, whenever I need to watch something and I have poor network issue, most times it load in low quality especially when watching youtube and you left it in auto or data saver (on mobile) it will reach a stage that you will start blaming yourself. The thing is the higher your video quality, the higher the date you will be consuming, they are never the same and someone have actually argue about it before.
He visit me one day and decided to stream a movie online through a particular site, I change the quality to 480p and he was like the stuff isn't clear enough, I gave him one bombastic look and I was like "oh you think you are in your house, on your hotspot, let me connect if you are looking for 1080p) and moreover you cant enjoy such quality in a place where the network isn't that stable, it will keep buffering and I hate it. I had to categorize how I watch videos based on which platform. When it come to HD, since I subscribe to Netflix, it must be in hd, I paid for it and I need to enjoy every bit of it, I don't visit cinemas because there quality isn't that good enough at least based on the movies I have seen so far, at times I can't differentiate them from dub movies, not clear enough and at times the sound quality is bad, most people will just watch to feel among but will still download to rewatch when the good quality part is out.
I make use of youtube a lot and 480p is kind of ok to watch and really clear enough expect if I'm watching some educational video, watching it in HD will allow you to view every detail in the movie, imagine watching a programming course and you are using 480p or 360p, you will just be listening to the audio part alone or just stressing yourself. Whenever I need to listen to music videos on youtube, I always reduce the quality and at times 244p, I just need the audio part and not that interested in the video. But as long as the movie is clear enough, I'm good to go