Friendships lead to trust and dependence on each other.
George trusts Lennie because Lennie cares for him.
"Because I got you to look after me, and you got me to look after you,"(14)
George depends on Lennie's strength to earn money.
"Jus' tell Lennie what to do an' he'll do it if it don't take no figuring." (39)
Of Mice and Men, by John Steinbeck demonstrates how friendships can lead to trust and dependence on each other in times of need.
George becomes friends with Candy and is dependent on his money.
"Don't tell anybody about it. Jus' us three an' nobody else."(61)
The character that seems to approve this theme the most is George. In the very beginning of the book it's apparent that he is friends with Lennie who shares the same dream with him. Lennie states that he cares for George and George cares for Lennie. This friendship provides George with a companion that he can trust and talk about thier dream ranch.
George is protective of Lennie because of his dependence on him.
George benefits from Lennie's strength because together they can easily get jobs that require strong workers. This demonstrates George's dependence on his friend because without him he wouldn't be able to earn as much money and get a job on a ranch as easily as he is shown to be not an incredibly strong individual.
George loses Lennie and can't achieve his dream anymore.
"Before George answered, Candy dropped his head and looked down at the hay. He knew." (94)
"You an' me can get that little place, can't we, George? You an' me can go there an' live nice, can't we, George? Can't we?" (94)
George includes Candy to be part of his and Lennie's dream to own a ranch and as a result Candy offers a great sum of money to achieve their goal. George benefits from the money he has earned because of how inclusive he was of Candy. As a result he depends on Lennie's strength and Candy's money in order to save up enough money for the ranch.
George wants to protect Lennie because of how dear he is to him. Without Lennie he wouldn't have anyone to trust and he woudn't have a strong worker with him. As a result that would mean he wouldn't be able to achieve his dream of owning his own ranch because he depends on Lennie, and without him George wouldn't be able to earn enough money to save up for the ranch.
"Get him, Lennie. Don't let him do it."(63)
George and Candy had lost Lennie after he had killed Curley's wife and as a result they understand that they can't achieve their dream. George depended on Lennie to continue working hard and earning money to save up for the ranch, but because they lost him, their dream falls apart. George's friendship with Lennie got him really close to achieving his dream, but because of his dependence on Lennie, he can't get there because Lennie can't help him no more.