A common theme on the threads where women complain about the lack of housework/childcare their DPs do is that they gew up with Mums who spent their lives servicing them and their Dads.
I know I'm going on a small sample size but the men I know who've been raised by single Mums are much more self-sufficient and self-servicing in the domestic sense than men who've been raised witnessing the traditional male breadwinner/female homemaker roles.
Has anyone else noticed this or is it just a blip?