Sweden started after WW2 and it is way ahead of Germany. So I’d say it is possible to accelerate. I think English really started to take hold in the 60s and 70s

Sweden started after WW2 and it is way ahead of Germany. So I’d say it is possible to accelerate. I think English really started to take hold in the 60s and 70s. Relatively low educated people born in the 1950s can make themselves understood in a pinch