I think the most important part of the article: "You lose your peripheral vision the more anxious you are because your flight-or-fight mechanism creates binocul

I think the most important part of the article: "You lose your peripheral vision the more anxious you are because your flight-or-fight mechanism creates binocular vision." Kids growing up in chaotic situations are likely to be very anxious, and will have so much more to worry about. So I think you are right to an extent, that the real luck is growing up in a more stable situation. What makes it worse, is that being taught how to relax in chaotic situations is so dang helpful in all areas of life, but only those given the opportunity to relax in the first place will discover that. You're otherwise stuck in a downward spiral.