I like the idea of removing power from the federal government in favor of states, but in the case of a service like social security, mobility between states cou

I like the idea of removing power from the federal government in favor of states, but in the case of a service like social security, mobility between states could cause massive issues. State x would not have a safety net, prompting companies and workers to operate there for the tax break. State y, providing a safety net, would be swamped with retirees but not productive workers. Citizens would be hugely incented to game the system. I don't see how it could be sustainable.