Models on the Runway

Models on the Runway - sounds dangerous ! Can someone tell me why when displaying the latest fashions the models have to walk in such a silly fashion ? It looks ridiculous ! Have you ever seen any normal person walk like they do ? It doesn't make the clothes look any better, so perhaps they are asked to walk like they do so as to distract the attention of the buyers. It is all so stupid ! I haven't noticed the male models doing it !!