My wife is in mechanical engineering. I am in academia. I think in my job there would be more pressure against it, but that's mainly because it's younger people. In my wife job, the CEO goes around encouraging people to drink while working, especially on Fridays.

> My German colleagues are mostly serious when saying “Kein Bier vor vier” (i.e. no beers before 16:00/work ends).

4pm doesn't mean that work ends then though. Many people continue working after that beer.