Who is Hussain Kirsha from Midaq Alley and what is their importance?

The son of the Kirsha Café's owner, Hussain is in his twenties, and is slight, delicate, fit, clever, energetic, intelligent, courageous, and aggressive. He dresses well and shows off possessions like a gold wristwatch, frequents cinemas and cabarets, eats meat, drinks wine, loves women, smokes hashish, and entertains friends. His motto is: "live large". After working both for his father and in a bicycle shop, Hussein becomes a day laborer for the British Army, and convinces his friend Abbas Hilu to abandon his meager existence as a barber and do likewise.