You would think 6 years is enough to learn English but in my day-to-day experience in Sweden (anecdotal) there are a fair amount of Swedes who speak a little to no English, especially in rural areas (and rural areas in Sweden are cheap, beautiful and fibred to the gills, so I have to assume there are some worthwhile start ups out there).

It certainly is an interesting state of affairs when you don't need to learn Swedish in Swedish cities (personally I feel guilty). At this rate I wonder if there will be a Swedish language at all in 100 years.