There are lots of millionaires which are not stereotypical rich people.
It's not a lot of money, but you could live off it if you were frugal.
(Reminder that the median income in the US is $44k a year). So lots and lots of people make that work...
The parent post was making distinction between rich/poor and nomad/hobo. I can't tell which this guy is and was asking for more background.