I often hear people say that Japanese people can't stand to eat very sweet things, but when I was in Japan, I saw people eating the most excessive desserts--like, a parfait of strawberry ice cream, sweetened strawberries, strawberry syrup, pie crust, whipped cream, and white chocolate. Now, if you say Japanese people don't eat very sweet things *frequently*, that's probably true.
Recently I read an article that said the number of mutton-featuring restaurants in Tokyo has exploded over the last 5 years, possibly due to worries over cattle and poultry health. I never ate lamb until I moved to the San Francisco Bay Area where there's a large Muslim population. Now I love the occasional lamb kebab.
But it seems to me that the average person, the world over, is not a very adventurous eater, really ... most of us prefer whatever we were raised to eat!