In Swedish, the v and the w only became distinct pretty recently. There are still people alive today who don't know which to pick if they don't already know how a v-sounding word is spelled. Also, the same person might say "Vilma" one day and "Wilma" the next, just as an example of the confusion (and Wilma is their own daughter...) Also, also, I have had older Swedes be completely unable to hear a difference between v and (English-pronounced) w.
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