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Except that it is relevant. I get the point you're making, but knowing about who has priority and acting in a predictable way that takes that information into account keeps you safer, which is why it's taught as part of Bikeability.
Riding "to avoid anything" makes it sound like you're just a fringe part of the ecosystem of road users; that everyone else is doing their thing and you're just fitting in around them. That's not a safe or forward-thinking way of riding. If you know when others have priority and act accordingly and know when you have priority and ride so as to communicate that you have priority, that will actually keep you safer.
Same point, but priority irrelevant.