
I strongly believe in Keith Haring's statement about individuality. Everyone has their own personal experiences and should have the right to express whatever it may be in their own way. For example, no one should be limited to one specific idea of what art should be. People have different backgrounds and experiences that they are able to express through art. So telling someone there is only one right way of art limits their individuality.
Also, every person sees, thinks and learns differently. If you give someone who is a verbal learner a piece of paper with visuals and examples but don't take the time to explain what you just gave them, it could leave the person confused and frustrated. Not everyone learns at the same pace or at the same level, but that doesn't make them any less smarter than the person sitting beside them. Everyone has their own unique way of understanding and learning. So how could someone test a bunch of different individuals and expect to get the same level of results from everyone? That's because you can't.
Our individual personalities makes us who we are, and makes our position in the world special.