I believe the appearance of a model is very important as it may make the clothes look more beautiful. However, in my opinion fashion is not something important because I prefer simple, comfortable clothes.
I think a model doesn't need superior knoledge to walk on the catwalk and they are normal people who are differentiated by appearance. But you can't now how hard it is until you try.
Sunt sigura ca sunt greseli pe acolo. dar sper ca te-am ajutat.