You are repeating one logical fallacy: the fact that you perused ad-supported "free" content does not mean that there wouldn't be non-ad-supported "free" content without the internet turning into an advertising mess.
I've grew up on the free Internet resources without ads (banner ads just came to be). I've read free books on highly technical topics, on Mathematics...
> there wouldn't be non-ad-supported "free" content
I'm not arguing that at all. I was pretty specific saying that the one that provided my learning experience couldn't have done it full time.
There wouldn't be as many learning opportunities. I also consider that I can't expect others to do work for me for free, that's just wrong.
Maybe I could have done better in something else, who knows, what I do know is more learning experience is ALWAYS better.