The problem is people dont just do nothing, they have to survive somehow and that usually requires the help of their community. If someone wants to be part of a group (country) it makes sense to require that person contribute back at least something.

A good example is the Uyghur forced labor in China, which China frames as the government providing jobs, training, and pay for that group of people.

I’m not really convinced its possible for someone to truly live off their own means. They’d have to be born in the wild and live there their whole life essentially.