Social Classes: Pre-Contact
The social structure of ancient Hawaii could resemble that of other familiar social structures. First, we have the mo'i, which was the king of all the land. Then, there are the Ali'i, who are the main chiefs under the king. With the Ali'i, there are also certain kapu that goes with the position of the ali'i (the same goes for the mo'i). There are certain ranks among the ali'i. For example, the highest ranking ali'i would need to find an equal ranking woman to marry, so that the heir could be of same rank. This is why some high ranking ali'i married family members. Finally, there are the commoners, or the maka'ainana, who made up the majority of the Hawaiian population. They are also regulated by the laws of the kapu system. For example, the shadow of a commoner could not fall on the same shadow as a high ranking ali'i, otherwise, that commoner would be executed.
Social Classes: Post-Contact
After contact with the missionaries, Hawaii's social structure began to change, as foreigners were also involved in the social hierarchy. With the establishment of the constitution, there were also many major changes to the social system of law. A king would still rule, but with the changes stated by the multiple constitutions, it would be inferred that the king/queen only had a cultural purpose in Hawaii, as the government was mostly run by foreigners.
Social Classes: Present Day
Presently, all of the social classes in Hawaii are based on economic standing. Today, social classes could be described as the "rich, middle class and poor" but is still a wading controversy among the United States.
The Future of Social Classes
To me, I think that social classes will still be classified by economic standing. There will always be segregation in the world, and so many people will be stereotyped with the social class they are associated with.