Based on the following passage on construction technology during the Middle Ages, why might a worker not be allowed
to join a guild?
During the Middle Ages, a family worked in a trade for generations, with fathers training sons and passing knowledge
along bloodlines. Masons learned how to carve elaborate gargoyles; glazlers made intricate stained-glass windows.
These skilled workers were organized Into guilds, and on a construction site, guild workers were highly esteemed while
lower-level unskilled workers completed simple routine tasks. All laborers were paid.