As I reported in another thread (sorry, don't recall which), I knew a couple in south Florida who had done this. They'd been together for decades. Lovely people. I knew them for about five years when the partner died of old age. The older guy had the money and his family attacked, stealing everything, including the house. We felt terrible for him. By then the surviving spouse was in his 60s, he found a house to rent and started back to work, having none of their substantial funds to support him. It was horrible for him and made us all feel like shit to witness that.
That was here in Florida. At the time it was illegal here for a gay person to adopt so I guess the adoption took place elsewhere, way before I knew them, but I don't recall all the details. Just the impression it left upon me: this world owes us.