Not everyone could become a knight. Firstly, knights usually came from a wealthy or noble family. The boys who would train to become knights were usually the sons of knights or lords. At the early age of 7 years old, the boy is sent the house of another knight or lord and there they are bestowed the title “page”. During this time, they were taught proper manners, and religion, as well as how to read, write and speak French and Latin. Pages acquired their first skills of knighthood by imitating knights and practicing combat with each other using wooden swords and lances.
At the age of 14, a page became a squire. The squire was an apprentice to the knight who handled the knight’s armor, served his meal, tended his horse and cleaned his weapons. Besides carrying out their duties in the lord's household, squires learned the martial arts of being a knight. Squires also practiced wearing heavy armor to get used to the weight and using weapons. The Squire served in this role for seven years and became a Knight at the age of twenty-one.
Source: https://feudalism-rights-resposibilities.weebly.com/knights.html
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