I personally like the idea of the traditional, nuclear family, especially as a model for raising children in a secure environment. Whilst this appeals to me personally, I wouldn't seriously advocate it as a sort of social imperative for everyone because heterosexual monogamy and life-long commitment doesn't suit everyone. And indeed, I think imposing this life aspiration on society as a whole leads to problems for people who don't naturally cohere to that of lifestyle.
I'm not really sure of the extent to which this social value existed in the first place, but it would be nice if society valued "the trades" as much as it did a university education. I think there's been a trend to emphasise the importance of university education in schools over learning a trade which has led to an over-supply of university graduates and an under supply of skilled trades people.
Electricians, mechanics, plumbers and welders are just as useful to society as lawyers, doctors, professional managers, civil servants and teachers and should be equally valued. In school, pupils shouldn't be necessarily be encouraged to go to university, and learning a trade instead of entering higher education should be presented as an equally viable and respectable option.