Women complained that the dining room made them servants in their own home, obliged to leave their guests and ferry things to and from the kitchen, charging through heavy doors, turning their backs on the festivities and otherwise obliged to absent themselves from the occasion.Whatever.
The open kitchen also suits new models of parenting. Americans are inclined to raise their kids in a way that privileges emotional and physical freedom over ceremonial perfection. From this point of view, the dining room was always a problem. It insisted that kids be formal, still, observant, when their natural condition, especially in an over stimulating America, was more active and spontaneous.
It's now in use, and, at the moment, a little less tidy. Some wooden swivel-back bar stools and some dining room chairs to match would go well, no?