Answer:
Because the navajo languages are only spoken but never written.
To keep language on and on you need people to speak it, and people to remember it. However, from my memory, the number of navajo tribes arent much and the language is pretty hard to learn since it is only a spokent language, so there are no written records for it.
Depending on the housing type the community varies greatly. If it was town houses people are forced to be closer due to the closeness of their homes. They have to make compromises and so on. If they were separate houses people can be more alone and separated
Actually, [b]parentheses[/b] add additional information, and they can be ignored. Probably
