There's an op ed in the New York Times on the marriage penalty in the SSI program which is preventing a couple who each have Down Syndrome from marrying.
The author completely misses or at least doesn't write about the strong possibility that the couple will soon be eligible for Disabled Adult Child (DAC) benefits, if they're not already. Marriage won't be a problem for DAC as long as both are eligible for DAC, which is itself crazy! DAC pays benefits on the Social Security account of a parent but the parent must be deceased or on benefits on their own account. Since the man with Down Syndrome is 44 and the woman is 40, their parents are at or near retirement age. Usually marriage ends DAC but not if you marry someone who is also eligible for DAC.
I hate, hate, hate counseling someone newly entitled to DAC that they probably don't want to get married because it will probably end their DAC but it's my job. This may be the worst provision in the Social Security Act.