I live and work in EU (and lived in other places) and I'm pretty sure corporate culture in EU, Japan, Russia is very different from that. There are pros- and cons- sure, but this easy-in/easy-out seems like a very US/Anglophone thing from my POV.
What a coincidence. Me too :)
The former is still fairly easy, and just has some process involved, the latter much harder unless gross misconduct can be demonstrated.
It's absolutely true the the UK/EU/etc. have much better rights than the US in this regard, but perhaps the higher pay in the US (at least in tech) pays for that.
I'd be interesting to see over long periods of time and many people who leave first, the employee quitting or employer firing/laying-off.
My anecdotes tell me more people leave than get fired, especially the ones with options.
Sure, but that's not the original point. The original point is that the company won't make you any favour if they get a better deal by firing you. So you should do the same and leave if you find a better deal somewhere else.
In the 2 decades I have worked as a Software Engineer, I met numerous people, in numerous different companies, that said those words, exactly.
All of them were eventually proven wrong. No exceptions.