It used to be a two way street, actually. The broader family was just that, a unit.
Now it’s little independent atomic cells doing whatever with little to no regard for the bigger picture.
Ultimatel, it’s the Boomer me generation that broke this tradition. It’s not weird for a millennial to look back and say “How nice of them to have their cake and eat it too” as I raise children alone and deal with the dilemma of how to treat their greed and selfishness as they age and demand of us while contributing little.
Millenials are the "stereotypical manchild who hates his parents because he's too much like them" generation. (I'm a millenial too)