Are the Requirements to Become Fashion Model Discriminatory?

Everyone knows that, even you're beautiful, you can still be barred from being a fashion model just because you're short. Female requirement is at least 5ft 7in and for male is at least 5ft 11in.

Is this a form of discrimination?

Maybe yes. Maybe no. We can't blame the designers cuz clothes look better when worn by tall people. That's how poeple think of it and this is what designers are giving. I guess it's a cycle.