I prefer to think in terms of nations. There is no such thing as a sovereign individual. Unless you refer to the Libertarian cranks hassling cops on YouTube.

I prefer to think in terms of nations. There is no such thing as a sovereign individual. Unless you refer to the Libertarian cranks hassling cops on YouTube. In practice, nations can restrict people from moving if they choose to. Perhaps mine won't, but China certainly will. The reason, by the way, that Oklahoma and California can't restrict migration between them is that US states are not sovereign. The original colonies ceded essential parts of their sovereignty to form a national federal government. This is US history 101.