YouTube premium actually has its own version of sponsorblock called skip ahead, it works really well, so they’re not ideologically opposed to skipping sponsored segments
That doesn't just target sponsor segments. It's for stuff commonly skipped. Like annoying parts of videos. Some video game guy I occasionally watching thinks he needs to sing for some reason, very useful for skipping those sections.
Sponsorships are the primary way YouTube creators make money. There aren't many things that could knock YouTube off its near-monopoly market position, but banning sponsorships is definitely one. Creators would revolt.
Creators are already starting to build their own platforms for hosting videos and many of these are quite successful unlike prior iterations from 10 years ago.
I would point to platforms like Curiosity Stream and Nebula, which are creator driven. Though I would not exactly call them Youtube replacements, as they are more just platforms designed for supporting specific creators more directly (akin to Patreon). These platforms are often advertised as in-video sponsorships, so going back to the original point, I do think creators would be very vocal if such ads were banned.
Where ? Like I have sponsor block on a desktop but on my pixel I don't have it and would like to have the option. Have the yt premium but don't see the option to skip sponsors.
If you double tap to skip 10 seconds during an ad read, it should appear as a button in the bottom right. It does not pop up proactively. It's algorithmically-based on which parts of the video get skipped most often by viewers.
Firefox for Android supports desktop extensions, including Sponsor Block and uBlock Origin.
There's also Tubular, a YouTube client and fork of NewPipe with Sponsor Block built-in. If you don't mind installing apks from outside the Play Store: https://github.com/polymorphicshade/Tubular
It isn't automatic for me unless I try to skip a sponsored segment myself, then it will kick in and skip me to the end of that segment with a popup above the scroll bar saying they did so.
And extensions such as SponsorBlock [1], which help user skipping sponsored sections or useless intros in videos.
[1] https://sponsor.ajay.app/