Although fashion is not indispensable in our life, it seems to quite important for many people. For centuries it used to be a way of demonstrating, from what social class the person came from. When someone wanted to gain respect or show the others that he is better, they wore best clothes and jewelry.
Nowadays it is not really very different. If someone wears very expensive and most fashionable clothes, they are considered well off and they show that they want to be adored by others. Especially teenagers wear in such a way, that all other people must notice them.
Most subcultures and separated groups in society have their own hairstyles and fashions. If you look different than most other people, you feel good. The others identify you with the group you belong to. The way someone dresses, may indicate the person's views on some matters, religious believes or a way of living. But at the same time it cam be misleading- one can judge you on the basis of your look and not yourself.
The market of fashion today became dominated by trades like Nike and Adidas. They make mostly sport clothes and their clothes are very expensive. In my opinion wearing such clothes is very snobbish. They are very well sewn, made of high quality materials and are really comfortable. But they were designed for people doing sports and today they are popular among al people. I personally don't like wearing such clothes. I also don't like people wearing such clothes. In my mind they are simply ridiculous.
I think that we shouldn't blindly follow the fashion. It is important to wear such clothes, in which you feel comfortable and which you find appropriate for your lifestyle and personality. We should choose what we wear ourselves and create our own style. Than we will always be fashionable.