Long time ago I learned how the traits of "chivalry" were established. The tradition of a knight (or chivalrous person) opening a door to let other pass first

Long time ago I learned how the traits of "chivalry" were established. The tradition of a knight (or chivalrous person) opening a door to let other pass first was a defensive measure. Doorways were good spots for assassination and getting stabbed with a dagger was a realistic threat. So a knight allowed - possibly even forced - others to go through the doorways first. Even the tradition of hailing with your hand comes from the need to show to others that you were not wielding a weapon. Chivalry. A foul word.