Free access to scriptures religious leaders try to censor
Saying that married couples have richer children doesn’t mean that making your relationship official actually increases the wealth of your children.
In the same way, saying that those who marry in blockchain have richer children doesn’t mean that marrying at blockchain is good for children.
I think the most robust union is the one that can be split into many small transactions where each side has an incentive to go again. Also, clear explicit contracts tend to be more stable.
Modern marriage institutions violate those principles. Instead of splitting contracts into smaller pieces, modern marriage is effectively one huge deals.
The deal itself is not explicit. Different states and countries have different marital rules. Some important rules are no fault divorce. However, those rules are not written anyone can divorce their spouse for any reason or in any clear way. The legal term is an irreconcilable difference.
Most nonlawyers do not know that irreconcilable differences means no-fault divorce.