Answer and Explanation:
A lot could have happened if the story had continued, because the whole environment and the characters would be subjected to more situations and factors that would act on their lives, causing them to have many experiences which are unimaginable for readers. In addition, a change in any event in history would modify all the other events that followed to promote a completely new ending.
There is more than one meaning in "Two kinds" mainly in relation to the meaning of the American dream for immigrants, the expectation of parents in relation to their children, the existence of freedom of choice, the relationship between country and children of different cultures, immigration, among others.