I only know what I know so prove me wrong. I think almost all other forms of art, from music to television and cinema to sculpture and mixed media and painting to dance all have proletarian channels, but fashion is almost exclusively for the wealthy. Arguably also it seems to me that a lot of culinary art tends to cater to the wealthy too, so fuck that as well.
Let's not pay attention to the amount of time, skill and lack of money that goes into sweatshops that make t-shirts though. Their time and skill is priceless too, as in we don't pay them.