tight-knit extended family
I agree. The extended family, three generations living under one roof with the odd aunt, cousin, godparent or uncle thrown in for good measure was a construct that was largely self-sufficient as its members looked out for one another. Of course, rivalries and misunderstandings did occur-- that is part of the human condition. However nowadays it is mainly a choice between the non-extended nuclear family (which may have the odd grandparent living in) and the "anything goes" alternatives: patchwork households, shackers-up, sterile same-sex couples, etc. Any increase in the percentage of the latter group is bad news for society as a whole, despite what all the gung-ho diversity freaks contend.