@aj625
I love Kit Kat bars. Lots of people do. Hershey have been making them in the USA under license for 50 years. They have one of the world's great catch phrases "Have a break, have a Kit Kat". It's sold as light chocolate snack, to go with a coffee or lunch, you can have 1, 2, 3 or 4 fingers. Who doesn't like a little bit of chocolate? Apparently, most Japanese.
In Southern Japan, however, marketing executives found Kit Kat popularity amongst students at exam time. The reason was because the name sounded like "kitto katsu", which means "you must overcome". So they were eating them for good luck. To the Japanese, "Have a break, have a Kit Kat" is meaningless, research showed the last thing they would do with 10 minutes spare is eat a chocolate bar.
This is quite an extreme example, but it just illustrates that sometimes even the manufacturer doesn't know what makes their product sell. As Nestle (who own Kit Kat) found, it is best to understand and feed (literally) ethnographic preferences rather than try and change them. It just won't happen.