I would rephrase that as "society has an interest in how the children grow up" so that the reader is clear that it's not a third party, but themselves that is benefited by having fellow citizens that grow up in stable families.
> it's not a third party, but themselves that is benefited by having fellow citizens that grow up in stable families.
This is something that I think can help to build common ground between working people, whether they are family oriented conservatives or economic progressives in the US.
By reducing the economic stress our current system places on working families through guaranteed benefits (parental leave, education, healthcare), we can actually promote the well-being of families in general, which is a goal shared by people across the political spectrum.
Everyone benefits from the reduction of crime and other social ills that often have their origin in unstable families.
