Keynes' famous remark about the predictably bad effects of his stimulus spending in the long run was that it didn't matter because "in the long run, we're all dead".
Well, if a family is not part of your scenario, you will predictably have something of a present, as opposed to a future, orientation.
Not that there's anything wrong with that.
--and those who raise kids never say that because their "we" is not just them but rather the entire human race.
It's a mindset that's basically impossible to share. Like the wife & I were telling the embarrassed mother of a crying toddler on the plane, "to other passengers who're parents no explanation was necessary, and to the non-parents no explanation was possible".
This is also why the state must favor only normal families; it's because they not only provide for a continuing population but their attitude represents the foundation for sustainable nation.