Could it possibly have something to do with the fact that the US is geared towards products that have been sweetened way above average?
Just a theory, but I remember the first time I visited USA, I just had to buy a can of root beer, mainly because one of my teenage idols, Paul Stanley of Kiss, always plugged it as his fave lemonade.
I wish I hadnīt bothered. It was so sickeningly sweet that I was unable to finish it.
Adding to that, Iīve never had any problems with Scotch. The first one I had, if I remember right, was J. Walker red, and I took to it instantly. I canīt remember what I expected it to taste, though. :)