Right. The comment implies that this kind of emotional commitment used to be the norm, which is very much a [citation needed] kind of claim.
A bit of family lore had it that when some distant ancestors of mine no longer could live independently in old age, one child took in the husband to live with them, and another child, quite distant from the first one, the wife. My mother, upon learning of that arrangement, exclaimed how hard it must have been for that couple to be separated in their final years, only to hear "Quite the opposite! They couldn't stand each other for the longest time."
A bit of family lore had it that when some distant ancestors of mine no longer could live independently in old age, one child took in the husband to live with them, and another child, quite distant from the first one, the wife. My mother, upon learning of that arrangement, exclaimed how hard it must have been for that couple to be separated in their final years, only to hear "Quite the opposite! They couldn't stand each other for the longest time."