[KorematsuFredt]

Why such sort of visas do not get popular beyond very hipster cases.

1. You are offering entry but not equal treatment (in terms of economic freedom). 2. In Europe citizens have taxpayer paid healthcare but as a visitor you are screwed, I mean private insurance exists but it is hard to have a good restaurant in town if another government funded restaurant is distributing food for free.

If you can say we will give you 100% exemption from tax then it is a different story.

[isbvhodnvemrwvn]

I mean there is absolutely no incentive to offer any of those to anyone. The sole reason for allowing workers is to collect taxes and not have them leech off your social programs.