Every state in the USA is an experiment onto itself. The theory of federalism, that the USA runs with, assumes each individual has the power to “vote with their feet” by moving to a different State experiment.
This is why there are Open Borders across US States.
The “hitch” to this, which is unspoken but known is that you need approximately $80,000/yr to viably vote with your feet. That’s where Middle Class begins in the USA in 2019.
This is an enlightening read as to why the USA does things as it does.