I think hedging is normal and natural (spouses eventually die or become incapacitated, for instance).

A healthy society takes common risks into account in the structure of the marriages. Our society does not do that. Rather than ensuring that men have emotional connections outside of marriages and housewives own property independently, we set everything up as if bad things never happen and let everyone slog it out in court or squabble over child support.

So people increasingly hedge by avoiding marriage, altogether, or approaching their new marriage like it's a war zone. Which collapses the birth rate and we all suffer.