Arguing that a 100km bike ride is not an edge case seems disingenuous. Most people could not complete a 3-6hr bike ride without weeks of training and my guess is most people on hacker news probably live fairly sedentary lives. "Added sugar bad" is generally good advice for most the population which statistically is fairly sedentary and doesn't require a huge amount of immediately available, low fiber energy.
If/when the AI music gets good enough, how will you know the difference? I find small artists on spotify all the time that I enjoy and there's no way to know anything about their creative process.
And how is the quality of life for those factory workers? It's almost like the craft of making physical things has been devalued even if we're making more physical things than ever.
Most grocery stores in every place I have lived have security cameras so that if you did something illegal you'd be identified very quickly. At this point this is even true of small bodegas.
Also scammers can't waltz into my grocery store from the other side of the planet and wreak havoc.
Ultimately you can use privacy enhancing tools, just like servers can choose to block them. I wish there was a better system but that's what we've got.