Be careful about what research you look at when looking into the history of the Nuclear family. It's a very politically charged topic, and a lot of what you'll

Be careful about what research you look at when looking into the history of the Nuclear family. It's a very politically charged topic, and a lot of what you'll find is more of an agenda driven defense of the nuclear family (or the opposite) than an explorative scholarly work. It's difficult to find a trustworthy source on the matter if you're just doing a quick google search. Probably the primary reason that multi-generational households were less common in England people married much later there than in the rest of Europe (Laslett does mention this in The World We Have Lost).