I help immigrants integrate for a living. Germany can be a frustrating country, but this is one of its best redeeming qualities.
I'd also add that the culture allows and encourages sick days. The average is 15 sick days per year IIRC.
The average number of sick days used is 15 or the number of days offered?
In New Zealand we get a minimum of 10 sick working days per year but some companies offer more and allow unused sick leave to accumulate.
Totally off-topic, but I read your profile to learn about this: https://allaboutberlin.com - you do awesome work, thank you!
Now I wonder if I could help the immigrants in my area (I'm in Hesse/Hessen), thanks for the inspiration too.