From a continent where you might find ads for shop assistants, requiring them to be "perfectly trilingual" (often seen in Brussels), I just find the sign insular.
You are welcome to visit Sweden. Not only can you use English in most any shop/restaurant/whatever, but in a healthy number of cases, there will be a person around who manages German (unless you go for somewhere where the patrons mainly are younger than 30, in which case there might be more persons knowledgeable of French or Spanish).
Regarding telephone interpreting for hospitals and for example municipal authorities, my impression is that it works very well. (That's a completely different trade from mine, translating, so I have no biases from being connected to it.)