

To add to this, carry-ons dramatically slow the boarding process, which adds to the overall cost of the flight. Charging for carry-ons makes it easier for flights to be consistently on-time, which is why airlines prefer to have fewer of them
Turning an airplane around is not a quick process, and anything that can be done to speed that it up saves the airline time and money.
Streaming video is expensive. LTT did it with Floatplane, even going so far as to develop their own backend. Watcher and some other YouTubers did it with Vimeo as their backend, but Vimeo still takes a large cut.
At the end of the day, people are doing this, but YouTube still offers a compelling value compared to other platforms. It’s hard to beat their scale, sophistication, and the discoverability of their platform.