If a couple lives in a community property state, and one is facing potentially serious major health issues, bifurcating assets can be a wise move. If one has a crippling stroke and spends the rest of their life in a nursing home, that can drain all assets, leaving the surviving party destitute. Better to let one be penniless and on Medicaid than both be in the poorhouse together. Just practical consideration. Simple uncontested dissolution can be a financial life saver.
This. One hears of divorce papers but not as much about a divorce on paper.
I know people who divorced to survive financially. They still lived together even though divorced. They didn’t WANT to divorce.