Maybe, because thinking and liking of each people not same. Everybody has belief, it cause from many things such as some people has belief the thing from their family, the parent teach their baby almost everything it make the baby know and follow to do that and belief thing that their parent or family told. When people grow up and learn many things by themselves, they will have many choices to do. Some culture has changed for the time period, time will change everything in order to adjust to the more era. Such as fashion, speaking, transport, etc. Everything adjusted for comfortable and matches.