I'm an engineer living in the UK who likely _could_ move to the US and take a larger salary, but actively choose not to pursue that option. As I've said many times on this site, it's likely that after paying rent for an apartment in SF, health insurance, and all my living costs, my pay after that would be more than the gross pay of an engineer in most parts of the UK, I still decide not to move for a few reasons.
The first question I ask is what would I do with the extra money. I don't _want_ to retire at 40 to pursue my dreams, I like what I'm doing and the pace that I'm doing it at. If I had the choice, I would choose to be where I am doing what I am doing. Why would I move somewhere else for 10 years to make money only to come back and do what I'm doing right now? [0]. I have friends, family, a life here. I don't want to uproot all of that (I have no kids and have already moved country, I don't want to do it again unless it would improve my quality of life). My partner would likely need to find something to do, as it's unlikely she would find a company willing to sponsor a visa for her line of work. Health care being tied to my place of employment is a total nightmare - I can only imagine what happens if I'm in a car accident and I end up at the wrong hospital, or treated by an anaesthetist that is out of network. It's also not just me, the injustice of it boils my blood, and I don't really want to contribute to that system.
I own a car, but it spends 5 days a week parked outside my door, and is only used for "adventuring". The idea of movin somewhere to live in a large house that I have to drive for groceries, drive to the doctors, drive to the bar after work etc, is not appealing to me.
The annual leave situation is commonly far superior in Europe - my current job has 40 days PTO per year, and I take them all. My previous job, the American employees had unlimited PTO, and I don't think my boss ever took anything longer than a long weekend in the 3 years I worked there. It also seemed many of them were banking on a "European trip of a lifetime" with their families, which I can do on the train from where I live (also I live in one of those bucket list countries to boot).
> It seems like non-Americans in this thread are unhappy that their ceilings are lower.
Grass is always greener. The Americans in this thread are complaining that it's so much more expensive to live in the US and are unhappy that it costs so much. Of course it seems the "ideal" situation is work for an American company, on an American salary and live in the UK, but having worked with Americans for the last decade, that has it's tradeoffs too - my workday starts at 10am and ends at 7pm (whereas my partner works 9-5). The "culture" of American work spills across, etc.
[0] https://www.becomingminimalist.com/recognizing-happiness/ - it's not a perfect comparison, but the point stands!