Fashion isn't only about showoff.. It's alot.. More... How you feel , how you perceive others on their looks... As clothes speaks when people don't.. It's shows our monetary growth.. Different clothes are suited for different occasions.. Clothes are also a fit in to the society...it is such a new area to research & study on.. For an overview on this do read.. -anamata khan's article..

https://buddingpsychologists.org/what-is-fashion-psychology-a-brief-overview/