So, it’s not a matter of Capitalism, but of greediness and money. (And just to check, capitalism is not about money, money is not the evilness here, but how we work for it)

So, Money + Families is a difficult combination. Check this research on psychology applied to money and free stuff: https://en.wikipedia.org/wiki/Predictably_Irrational#Being_Paid_vs._A_Friendly_Favor

Yes, we could try living in communes, having co-ops, and other experimental post-capitalist alternatives. I don’t know what could happen.