I worked in the UK for a few years, and have had to take days off with no notice - to attend a funeral, say - and no one even thought about criticising me for it, let alone fire me. That might have been because it was a Japanese company though, I can't really tell.
I also worked in Germany for a while, and a co-worker found himself in a similar position. The company made a point of reminding him that this was not how the rules went before sending him off with instructions not to be back until the situation was resolved.
I don't know which part of EU your friend worked in, but I wonder if your generalisation might not be a bit too broad.
That being said, it's happened in my company and we most definitely didn't fire the person for that. I can see how it could happen, but I don't think it's a sure thing by any stretch of the imagination.
In this case, what we can guess it looked like from her manager's point of view was: she kept taking days off, with excuses that didn't seem to make sense (can't find car keys), and now she wants to take three more days off.
Without trying to blame anyone, I feel bad for her and hope her boyfriend recovers.
Firing a single mom for needing to take time off to take care of someone close to her, especially when it would appear her performance has been at least acceptable (if maybe not her attendance)... right or wrong, it's still a bit of a dick move, wouldn't you agree?
Well, this is protected by law in the US, resulting in a similar guaranteed win if sued, the caveat being "boyfriend" not included under "family".
Really? The UK provides employment protections for this kind of incident, and we're not the most eager participant in the EU Social Chapter.
As a packer on a zero-hours contract in an Amazon shipping warehouse? I don't know for sure but my gut feeling is "hell no, you'd be let go!"
https://fullfact.org/economy/facts-about-zero-hour-contracts...
I live in Czech Republic, it is post-communist country with protective work law, for example employer must give 3 month notice when someone is fired. Law specify long list of reason for taking a leave (children sick, wedding, funeral, blood donation, even looking for new job)...
But her boyfriend is not dependent on her (and is not even relative). It is very different when children are in hospital.