Why do Jewish men wear a hat?
The little beanie like hat
Jewish men wear the hat which is known as the Kippa as a sign of humility and acknowledging God. However, in 1215 adult males were forced to wear the cap to distinguish Jews from others.
Yes, that's true. It's only a tradition, not a commandment. It's to show respect to God, and humility before Him. Ancient Jewish sources say that only few sages used to wear a hat, but with time it became a wide spread Jewish costume.