From observing non-techy people it's because of intent. When you go to YouTube or Pandora or whatever you intend to make your phone make noise. When you follow

From observing non-techy people it's because of intent. When you go to YouTube or Pandora or whatever you intend to make your phone make noise. When you follow a random link from your Facebook news feed on to an unknown website with a 'funny' article you don't. This is why autoplay videos are now blocked from playing audio as well. This can't be resolved with a confirmation dialog as people don't read those either. I do hope Apple add support for PWAs in the future, though perhaps with some very guarded APIs available to avoid exfiltration of contact lists and excessive background work etc.