[njepa]

Seem like one of those in group type biases. Where the more similar something is the more we obsesses over the differences. Presumably because we can relate to a lot more of the information.

Somewhat ironically being irrational can actually be a good way to make unknown, but largely equal, decisions. Because at least you picked something with conviction, rather than having analyzed the situation incorrectly.

Of course for a lot of us good choices aren't the problem so much as the downside. I remember someone made a calculator online for how many time one would most likely see their parents before they died.