Salaries are only better for certain fields in the US though. If you are working in a grocery store in the US vs EU, you would be better off in EU. And you wouldn't have to worry about falling ill and skyrocketing healthcare costs.

In certain areas of the US maybe. I believe the average wage in the EU is actually higher than in the US. Need to look up the Source, which is hard because I'm on mobile right now.

And lose that advantage the moment you need to go to the hospital.