I will add one reason - healthcare and wealth protection. Care and Caid have enough loopholes that wealth can be quickly sucked up with assisted living, nursing homes and other costs of insurance. Caid will cover an individual with limited means or Care can cover those with "disabilities" and max out benefits. There is a model that folks are divorcing shifting assets publicly, living together privately and protecting wealth. Person A has a significant health need. They divorce and lose the net asset value in the process. It does not require an equitable settlement. Person A and Person B continue as if still married, but all assets are then transferred to Person B. Person B; healthier and with a longer projected lifespan, places those assets in a trust protected from Caid and Care requirements, still has access until passing and then, after 3-7 years, can also get on Caid a and protect assets and income. Had a family friend I helped outa a healthcare jam that owed $30,000 for one episode of care, lived in a $600,000 beach house, had a 34 ft fishing cat. Was making less than $12,000 a year in "income" and had limited assets in their name. Helped them obtain charity care for the entire balance.