Honestly, I pay for YouTube Premium because I find value in it. The price is reasonable for where I live, and it's my main source of entertainment. I don't like watching movies/TV shows that much so YouTube is my jam. So the convenience of being able to download videos, ad-free viewing, picture-in-picture, background playback etc. is totally worth it for me. I know if I dig hard enough and use an Android phone/tablet I can get those features without having to pay, but I don't like Android and again, the features are worth the small price.
For me, YouTube Premium and Spotify broke piracy because they're more convenient than pirating.