It’s worth separating what people actually believe about how altruistic other people are from what they pretend to believe about the altruism of other people.
If you ask someone whether they believe that there’s a chance that their partner would cheat on them, they are most likely to tell you that their partner would cheat on them. The same person might take a few signs that point in the direction of their partner cheating as a huge problem.
I would also expect that beliefs differ a lot between people.
It’s worth separating what people actually believe about how altruistic other people are from what they pretend to believe about the altruism of other people.
If you ask someone whether they believe that there’s a chance that their partner would cheat on them, they are most likely to tell you that their partner would cheat on them. The same person might take a few signs that point in the direction of their partner cheating as a huge problem.
I would also expect that beliefs differ a lot between people.