When we say firsthand and personal source, this would mean that the answers that you are looking for should come directly from the person him or herself who is involved in a particular issue or event. In this case, it is the diary entry that could be considered as a first hand source for a historical event. The diary is directly written by the person him or herself.
Delightful, mood, angry, conceited commanding, diction
I would say that yes it would be an appropriate topic for a research paper, there is plenty you can research as well as tons of people. :P
If this helped please thank and Rate
This culture sounds like an early 1900's, mid 1800's culture. Back then, people respected the elders in their communities, oftentimes going over for a chat or a cup of tea. The saying "respect thy elders" comes from that era.
If you are talking about a certain culture, like an African, American, European, etc., it would probably be an Asian culture. Asian children are taught at an early age to respect and mind all elders, including their older siblings.
If you are talking about religion...every religion tells the kids to respect their elders!