Answer:
Michael and his friends talk about the subject of death, because of the normal fear of death that people experience in their latest years. It is something that directly affects them.
Talking about death and the people that has passed helps them feel better.
Step-by-step explanation:
Experiencing the death of close people becomes something more often when someone is at their 80s. People deal with death more often than when they were young. Therefor talking about something accurate is to be expected.
Talking about things that are difficult, helps people deal with the experience of lossing loved ones.