This is cultural. Americans and many westerners have a very high opinion of themselves, in terms of looks, intellect, etc. This doesn't hold true for everyone,

This is cultural. Americans and many westerners have a very high opinion of themselves, in terms of looks, intellect, etc. This doesn't hold true for everyone, however. I view myself as a malformed hideous idiot with a vicious temper. Much better to keep expectations low.