> I mean wholly crap, this reminds me of old German industry where people retire in the place they started.
German here. I think this actually is a huge part of the success of the famous Mittelstand - all that institutional knowledge these people have is extremely valuable. It's not just basic stuff like "know time tracking, billing and other admin systems and internal processes", but also the stuff that really can speed up your work: whom to ask on the "kurzer Dienstweg" aka short-circuitting bureaucracy when needed, personal relationships with people in other departments on whose knowledge you rely (it's one thing if you get a random email asking for some shit from someone you don't know, but I'll always find some minutes to help out someone who has helped me out in the past), all the domain-specific knowledge about the precise needs and desires of your customers...
Attrition is bad for a company as a whole, the problem is US-centric capitalism cannot quantify that impact (and it doesn't want to, given that attrition-related problems are long-term issues with years of time to impact), and so there is no KPI for leadership other than attrition rate itself.
The only problem is that over the last years, employers' mindset has shifted from regular wage raises to paying the bare minimum which makes changing jobs every few years a virtual requirement for employees to get raises, and so we are already seeing the first glimpses of US employment culture and its issues cropping up.