Soundforbjt is on to something, although investment in family I think is only the tip of the iceberg.
There seems to be a belief among millennial liberals that America ought to model ourselves politically after socialized European countries. I don't mean to say that they think that some of their policies and cultural beliefs are right for us. In that vein, I agree that America has a lot to learn from Europe. What I mean is that my perception is that there are many who think we should literally pattern ourselves after a socialized European country.
To that, I really question why it seems so firmly held. Europe has taken enormous blows economically of late (Greece, UK threatening exit of EU, negative interest rates even in Japan). That really gives me pause.
Personally, anyone who denies that governmental social support networks have high potential for abuse and dependency should be immediately discounted. Everyone knows that an honor system of distributing resources is fragile. It doesn't make it inherently the wrong idea. Certainly for at least some period of time, social programs provide clear benefits. Instead of debating whether they are good or not, maybe we should attempt to understand when and why they might go wrong.
Personally, I think the sustainability of socialism in Europe has depended on the cultural backbone of their societies. Largely, these are societies with high traditional values of family unit, cultural history, community organization and support, sustainability, relationships with community businesses, and evaluating others by their contributions to community rather than their ambition or personal wealth. Largely people who traditionally value who provides them service and the quality of the service provided rather than the good itself and the cost associated with that good.
I think many of those European cultures are degrading, and with it their economies. These were never US values, though. We were founded on diversity instead of homogeneity. We were founded on rejection of historical societies who oppressed us as a colony. In most of Europe, the sense of origin and history is palpable when you walk around.