I’ve seen worse homes, too. Yes, they look healthy enough. Could be the older ones put the little one up to selling the bear but doubt we’ll ever hear the whole story.
All the kids are old enough to fix something to eat. One is nearly as tall as the mother. From the pictures, there are beans, rice and boxed items. There’s flour, veg oil and a skillet for a batch of tortillas with those beans. They’re also old enough to clean up the place and know not to put t-shirts on coffee makers. Yes, the mother and father should answer to that health disaster of a fridge but the kids surely aren’t so dumb as not to figure that out how to use that container of Comet and vinegar on their own even if their parents don’t teach them.
Kids cleaning... a kid will NEVER live better than their parents.
My mother forced me and my sister into chores for as long as I could remember. And remember the Bill Cosby Himself album ? “My mother would come into my bedroom, and see a shoe upside down and get tired. And sick.”
My wife comes from a ... different home. And she never performs better than her parents did. The house is exactly as clean as your parent’s.
So these kids will never take care of themselves. healthy or not, IQ above 120 or not. It’ll never happen. Nurture always establishes limitations.