I agree with you to some extent in that those in poverty have a hard time breaking the cycle and that many that suffer from poverty appear as the type of people we have been discussing. However...it is not poverty that I am talking about.
It's a family 'type' and I often see people like this that are not poor. To use the Avery/Dassey clan again..they may appear poor by the way they dress, etc. but they were far from living in poverty. Successful business, drove nice vehicles, LOTS of money in equipment, good share of property, etc.
I personally know a local family that owns a towing service and they are loaded with money, yet many would see them and affiliate them with poverty. Nothing could be further than the truth.
You can't always judge a book by its cover when it comes to money in the bank. It's more of a lifestyle than bank accounts.
I'm not saying this family in particular is rich, poor or in-between. I'm just stating that it is not always poverty that gives the vibe these people do, and answering your post.