In fact, that's how things used to be before Google and their ilk used ads to make an ecosystem, and their ecosystem was better and free at the point of use than what came before
Also most people would probably prefer not to pay for the ad fees that google extorts from pretty much any company.
You can pay for Google One right now, roughly exchanging cash for storage capacity on the otherwise free services. I see no viable competition for that model. Protonmail is comparatively expensive.
I really don't want the Internet to turn into the mess that is video streaming where every independent licensing agency tries to capture an audience for $15/month.
Another great example is Let's Encrypt. It's a public good to provide quality TLS certificates and the marginal cost is $0 with some sponsorship. I'd far rather other core Internet services like e-mail and basic file sharing are sponsored.
- one skippable 5s ad
- two skippable 5s ads
- one unskippable 5s and one skippable 15s ads
- aforementioned or two 15s ads, one skippable
- two 15s unskippable ads
- removed the prerenderer 'skip' button to make it more difficult to immediately skip
- removed the ad amount indicator and precise length indicator (now just a bar) to psychologically drive people into sunk cost feelings
God knows what they're cooking up next.
And for large swathes of content, there is no alternative to YouTube.
And a lot of them already suffer from subscription fatigue.