Grapes of wrath chapter10-16

These chapters talked about the struggle taken by the family to get to California. THe first two chapters talked about them allowing Casy to come along with them even though they really dont think they have the space. They soon run into problems before they start their journey. One can only inferr that this mean their journey is goin to be much more hard. Their grandpa did not want to leave, he wanted to stay on the land and fend for him self, but they drugged him and forced him alone. I think from this they will regret it. If he dies on the road they would probally start to think what if we did leave him can would he have lived longer?. As the book countinue we fine out Grandpa dies because of a stroke. From this i think they are starting to think what if he was left back home would he have gotten a stroke? if so who he have gotten help? The book talks about the joad family being affected by the economy but then it brings in the Wilson family. This does not seem realistic to myself. The families are both heading to California, people have told me time and time again there are not enough jobs their they should not be going. But yet these two families get together and go. What do they expect to happen when they reach California? From the issue with money they have thought ahead, but when it comes to this subject they do not, why not? Also the death of the dog, what has that proven? The turtle was almost purposely killed, and did not die, the dog however did. Why? Is the dog a representation of just the family in the west while the turtle showed the whole US?