In chapter 1 of Of Mice and Men, what makes George and Lennie different from other ranch laborers, according to George? Support with evidence from the text.

Look towards the end of the chapter, and you will find Lennie asking George to tell him "about the rabbits." At this point, George begins to tell a story which is obviously very well rehearsed -- it's something he has been thinking about for a long time, and which Lennie likes to hear.
George explains that he and Lennie are different to other ranch workers for one very fundamental reason: other ranch workers don't have "fambly" (families) and George and Lennie do. While other ranch workers are lonely, and have nobody to care for them and nothing to do but work and then blow their money in town and then move on to another ranch, George and Lennie have something to look forward to. In the form of each other, they also have a family, a support system, and somebody to care about them.
George says that he and Lennie, by contrast to the other ranchers, have "a future." They have someone "that gives a damn" about them. With other ranch workers, they could end up in jail and simply be left there to rot, but George has Lennie, and Lennie has George, which makes all the difference.
Lennie has heard this story told to him so many times that he could, George says, tell it himself, but he wants to hear George tell him about their imaginary future. In this future, the two men would live in their own little house, with a vegetable patch and a cow and acres of land. They would have chickens and rabbits to tend.
In many ways, this is only a fantasy which is unlikely ever to happen, as George knows, but in other ways he is right that he and Lennie are very different to other ranch hands. They certainly support and care about each other.