Edit: There was no need to delete your reply. I just explained it without any toxicity. Context for any reader: He was saying that as a kid they had to pay for cable tv and still got ads on the tv programs. As a justification for why Windows has ads.

Because you pay for access on your cable provider, like you would pay for your internet on your internet provider. Then you can watch free channels or pay for certain channels, like you would pay for Netflix or Disney+ or whatever is called. With the paid services there shouldn't be any ad, with the free services like YouTube, you get ads so YouTube can pay their bills.

So, you analogy was completely missing the point and is not comparable to a paid operating system. You don't even get ads with free operating systems, or with your paid competitor Apple.