I'll just point out that in the UK and most of Europe we don't see a reason why this should be reciprocal. You can quit at any time, but you also can't be fired

I'll just point out that in the UK and most of Europe we don't see a reason why this should be reciprocal. You can quit at any time, but you also can't be fired without a reason if you've worked at a company for more than 1-2 years. It doesn't stop people from firing bad coworkers, and it appears to have no negative effects on employment.