Nowadays, a lot of aspects of how people dress depend on the global clothing trends. This can happen because, naturally, human is a social creatures that are easily influenced by others and need to be accepted by their environment. However, if the vast majority of people are using the same type of wardrobe, it can lead to the scarcity or even extinction of the unique and diverse cultures of fashion in the world. Moreover, the one who is selling clothes that suit the trend perfectly are fast fashion brand, which is very non-sustainable. Hence, personally, I think global fashion trends have a more negative impact on the development of cultures and sustainability.