Petition Equality in modelling

Basically a campaign to make the modelling industry completely equal in all respects, someone should not be denied going into the career try wish to go into because of their height or weight. I.e shows like Britain and Ireland's next top model denying entry to people under a certain height.
How can we be surprised about rising rates of eating disorders and low self-esteem when the media is promoting a "perfect image" of people. If the modelling industry showed that people of all shapes and sizes are beautiful then perhaps these cases of eating disorders and rates of self harm etc. would fall because individuals would not feel that they have to be stick thin and tall to be considered beautiful by society.