They will actually. Youtube premium has had explosive growth after YT started pushing more ads and blocking ad blockers. People pay for streaming services quite regularly. And youtube has one of the strongest platforms/content bases to sell a subscription.

Youtube is more like modern Cable TV though, there's huge value there for the price. I like visiting Twitter and Reddit occasionally for news, I've been using both since they launched, but I wouldn't pay for either of those. I could easily make the choice to cut that out of my life.