In most of the industrialized world you can't pay taxes if you're not there legally. And there is no need to be a permanent resident for single payer healthcare

In most of the industrialized world you can't pay taxes if you're not there legally. And there is no need to be a permanent resident for single payer healthcare in most countries, just to be there working legally for some time. I wrote "taxpaying foreigner" as opposed to "permanent resident" because most industrialized countries do indeed offer their healthcare to non-permanent residents on work visas. For example in Ontario after 90 days you have access to single payer healthcare. In France you get it after 3 months, in Spain after 2-6 months depending on the locality, etc...