Why would Steinbeck choose to include a mentally disabled man as one of his main characters? What would he be trying to expose about the plight of the mentally disabled during this time period?

By providing an emotional image (ive read this passage so lol)

Dogs have been considered man’s best friend for decades! most likely because of their kind and loyal nature. they make splendid companions. their loyalty is beyond compare and after all, a dog is the only thing on earth that loves you more than he loves himself! dogs see us as their friends and leaders, they’ll do anything in their power to ensure your comfort and safety.