@Laotionne - I'm not sure of the exact rules for who does and who does not receive Social Security burial benefits, but I do know that when my father died my mother received a couple of hundred dollars. She was suffering from dementia and living in an assisted living facility at the time, so the money was deposited into her account with the facility.
When my mother died, since my father was already dead, there was no Social Security burial benefit sent out. I was not able to receive the money to help with the burial even though she was my mother, and I was taking care of the burial arrangements.
This was not really a big issue because the couple of hundred dollars would not have made much of a difference when you consider the actual thousands of dollars that the average burial costs. Social Security death benefits for burial are more of an insult than anything else.