Do you usually check the video quality while streaming on YouTube? For mobile it should range from 144p to about 720p or even 1080p.
Assuming you are streaming on mobile data, would you reduce it to say 720p or even 480p to save on data? I have been streaming on 480p for a couple of days and I haven’t seen any difference (in clarity that is).
If YouTube was to set the default video quality on say 720p or 480p would you be ok? This is when strictly streaming on mobile data.
This should be only applicable to the Android YouTube app, not iOS