It's interesting to read all these details about 80 yrs old folks.
I guess, it reflects the circle you are in. My circle is so different.
I know a lot of relatives rich and poor who are in their late 70s and 80s and they don't spend much.
Their intake of food is minimal, they don't travel as much, and their overall spending per month is 1 - 2 K per month. They are active in the specific town activities going for exercises etc... They visit other families etc.
They don't go out for holidays or far distance visits etc... as they get tired easily.
etc...etc...etc...
Their main bulk of spending is on groceries for the daily low fat milk, rice etc...etc..
So , So different from the 6K mentioned above.