It's very easy to not have the same conversation four times in a row by just... not doing that?

It makes sense to me that it should be possible. It doesn't make sense to me that anyone would feel compelled to do it, though. I mean, you can have the same conversation four times in a row with just one character, but you don't, because that's silly.

Now that I DO know what your complaint is, your comment about single-player games having to... put up with, I guess... multiplayer systems makes a lot more sense, but it's just super easy to avoid. Like, the problem you have is a problem I didn't even encounter in my playthrough, because I just... didn't do that.

It's like the old joke about the person who goes to see the doctor and says "Doc, it hurts when I do this!" And the doctor replies, "Well, stop doing that!"

I hate that joke, because, presumably, one should be able to do whatever it is the patient is doing, and it's not SUPPOSED to hurt. But I think in this case it's apropos, since some people do benefit from the game behavior you don't like, and that game behavior is trivial for you to avoid.