Chivalry is bred into people. Although it was custom in medieval times to be born into the opportunity to become a knight, chivalry itself is acquired only through the hearts and minds of individuals, not by rites of birth. It is what we do and believe which defines us and chivalric literature often involves a quest, which the protagonist endures and through which he overcomes his fundamental flaw, which aids in his inclination to attain chivalry.
This is reflected in J.R.R. Tolkien’s The Lord Of The Rings through the characters Frodo Baggins and Samwise Gamgee. Tolkien constructs Frodo and Sam as simpleton hobbits that know nothing of swords and battles, however after they endure a horrific quest, they prove to be two of the greatest chivalric characters throughout literature.
They commenced their quest to destroy the ring with insecurity and reluctance, however with each step they took, the two hobbits grew in strength of character and nobility and frequently passed down the opportunity to give up in the hope of restoring peace and goodness in the world.