[SZJX]

It's not totally true that you don't need PR in European countries. For example you would get very different treatments and interest rates for loans when you want to buy real estate or apply for credit cards (many banks flatout turn down your application). You're probably not that much of a "second class citizen" compared to somebody working in the US, but some subtle restrictions still do exist. Though of course I can easily imagine the situation being much worse in the US.