He probably thinks that he works part time with all those kids, puts kingdom interests first, never got evicted, cut off, repo'd, so he has Jehovah's blessing. He feels perfectly qualified to give you advice, because in his eyes he is a success. He is one illness away from reality. I suspect he isn't completely honest either. 20 hours a week and no financial troubles? Are you sure his older kids don't work? Maybe they do and are supporting mama and papa since they won't work to support themselves. Jehovah provides! LOL
Also you say he is African. I have often been amazed at what immigrants can do with money. Many I have known have many family members in the house and go without a lot of things we like to have---like cable and internet. He may just be exceptionally thrifty, and that can be a cultural thing.
NC