Somehow paying for Netflix is fine but god forbid I want to watch a 10 hour loop of the DS9 intro without ads.
Family plan in my country is like $4USD. And it provides more than adblock. I can easily download a few hour-long videos to my kid's tablet for long train rides without futzing with third-party Downloader. I have a pihole in my house and use adblock on every device that supports it, but premium is still worth so much.