People won't pay more, or they'd already charge more. Especially when it's trivial to pirate. The only reason people started paying for music after about 20 years of rampant piracy is that streaming came along and offered a better user experience than loading up your phone or MP3 player with files that you had to download and organize yourself. It's easier to pay $10/mo than deal with that. But if the price goes much higher, people will either find technical solutions that make piracy easier (e.g. sonarr and better media apps) or they'll stick with free tiers and put up with ads.

We could always go back to the time before streamers where everyone just illegally downloaded their music.